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A Catalog Reference · the second house brand — the older rival that won

Diamond Edge

Shapleigh Hardware Co., St. Louis · Keen Kutter's older rival — a seller's name with a federal first-use of 1863 on the record, and the house brand that absorbed Simmons in 1940

Researched & written by Ethan Trex, a lifelong pocket-knife collector. · Reviewed August 2026

✓ Primary — read directly / record checked ~ Corroborated — reliable secondary ⚑ Archival — identified, off-line

The older house brand — the rival that won

Diamond Edge is the other great St. Louis house brand — same idea as Keen Kutter (the mark dates the seller, the knives were contract-made, the plate is a priced catalog page) but four things set it apart. It is older — and, unlike Keen Kutter's 1866 lore, it can prove it: a federal first-use of 1863 is on the trademark register. It is the rival that won — Shapleigh, Simmons's great St. Louis competitor, bought the bankrupt Simmons in 1940 and thereafter owned both house brands, so Keen Kutter's story ends inside Diamond Edge's. It had a different maker mix — Empire, then Camillus and Schrade, never a captive like Keen Kutter's Walden. And it flew its own diamond-“DE” device and slogan, “Diamond Edge is a Quality Pledge.” ✓ primary · S1/S4

This entry follows the pre-war Diamond Edge: A.F. Shapleigh and the firm's seven names, the rivalry that ended in absorption, the makers who forged the knives (Empire → Camillus / Schrade), and the priced house organ that is its plate. Keep it clear of the post-1940 “Shapleigh's Keen Kutter” and the modern Val-Test revivals.

Page 587 of The Gimlet (Nov. 1910), Shapleigh's house organ, headed 'Holiday Pocket Knives — These Knives Are Diamond Edge Quality Throughout,' with two engraved sterling knives and per-dozen prices, and the slogan 'Diamond Edge Is a Quality Pledge.'
The priced brand — from the seller's own house organ. With no general Shapleigh catalog digitized, Diamond Edge's priced plate is Shapleigh's house magazine, The Gimlet (Nov. 1910, p. 587): “Holiday Pocket Knives — These Knives Are Diamond Edge Quality Throughout.” The sterling No. 341 gentleman's knife (with a cigar cutter) is $44.00/doz; the Congress No. 4S194½SS is $50.00/doz — the same two reappear at $4.00 each in the 1913 Gimlet. Every page flies the slogan, “Diamond Edge is a Quality Pledge.” ✓ primary · S1/S2

Corporate genealogy — A.F. Shapleigh and the firm's seven names

The rival that won. Shapleigh and E.C. Simmons were the two great St. Louis hardware houses. In 1901 Simmons's own Saunders Norvell defected to run “Norvell-Shapleigh.” Then, after Simmons's 1939 bankruptcy, Shapleigh bought Simmons outright (1940) and restamped its blades “Shapleigh's Keen Kutter” — the younger house brand swallowed by the older. Diamond Edge stayed the primary line; the guide's Keen Kutter page ends here. ~ S7

The older brand — and it can prove it

The sharpest thing that separates Diamond Edge from Keen Kutter isn't age alone — it is that Diamond Edge can prove it. Keen Kutter's 1866/1870 origin was pre-federal lore, with no record before its 1905 mark. Diamond Edge's federal first-use — Nov. 30, 1863 — is written into the trademark register itself (the pocket-knife mark, Reg. 0086499). Adopted 1864, older than the Keen Kutter name, it is the senior St. Louis house brand, and — per the collectors' club — arguably the first jobber-trademarked edge-tool line in the country.

The 1927 Diamond Edge catalog cover, showing the diamond-shaped 'DE' trademark device, the slogan 'Diamond Edge Is a Quality Pledge,' and the lines 'Shapleigh Hardware Co., International Distributors, Established 1843, Diamond Edge Tools, Diamond Edge Cutlery, St. Louis, U.S.A.'
The diamond, the pledge, and “International Distributors.” The 1927 Diamond Edge catalog cover: the diamond-“DE” device, the slogan, “Established 1843,” and — the house-brand thesis in the firm's own words — “International Distributors” (Shapleigh distributes; it does not make). A 1992 facsimile of the 1927 original; the catalog itself is planes, shown here for the logo. ✓ primary · S3

The makers — Empire, then Camillus & Schrade (the contrast)

A house brand's real question is who made the knife — and here Diamond Edge parts company with Keen Kutter. Shapleigh made nothing (its own cover reads “International Distributors”); its knives came from an independent, scattered pool, not a captive factory.

EraMakerNote
~1900–1930Empire Knife Co. (Winsted, CT)the principal early maker — independent, not owned; ID'd by the Alvord punch + a plain diamond shield.
~1902–1918+ a scattered import poolWostenholm “IXL” & Joseph Rodgers (English), German blades, J. Koester's Sons.
~1918–1960Camillus + SchradeCamillus a long ~1909–1960 run; Schrade the switchblades (the A8); some New York Knife Co. Barlows.
1960–1967Schrade (Val-Test era)post-war; then Imperial/Ulster acquired the mark 1967.
Empire's plain diamond. Empire's tell is the patented Alvord punch blade (U.S. 833,146) plus a plain, unengraved diamond shield (Empire left the diamond blank); a “DE”-etched diamond = a different contractor; Schrade made the switchblades; New York Knife Co. the “pick bone” Barlows. Positive maker ID is often impossible — and, unlike Keen Kutter (with Sellens's dedicated book), there is no comprehensive published Diamond Edge key. ~ S8
Where it differs from Keen Kutter. Keen Kutter's early maker was the Simmons-owned, captive Walden. Diamond Edge never owned a cutlery — no Walden, no Winchester — drawing instead on Empire and a wider import pool. The two brands overlap only on Camillus + Schrade, and mostly only after 1940, when Shapleigh owned both and sourced them from the same plants. ~ S8

What a knife cost — priced, from the house organ

Like Keen Kutter, Diamond Edge is a priced brand — but no general Shapleigh cutlery catalog is digitized, so the prices come from The Gimlet (above): the sterling No. 341 at $44.00/doz, the Congress No. 4S194½SS at $50.00/doz (1910), the same two at $4.00 each (1913). Honest limit: those are premium sterling gentleman's knives; the everyday jack-and-Barlow priced grid survives only in a 1970s collector reprint, not in the public domain. ✓ S1/S2 ⚑ everyday grid

The number — a seller's SKU, with an inconsistent prefix

Diamond Edge's number is a seller's stock number, like Keen Kutter's — but messier: the letter tags a line, not the whole brand.

DE8   A8   1042

“DE” on some (a pen knife)  ·  “A” on the autos (a switchblade)  ·  plain numbers on many — unlike Keen Kutter's brand-wide “K.”

Sequential / stock, not coded. Catalog-and-etch, not tang-stamped — the tang carries the company NAME + the DE-in-diamond logo, and “Diamond Edge” is a blade etch. (No period Diamond Edge knife catalog is digitized, so the number is read from surviving knives.) ~ S8

Patterns & handles — sterling gents to a pearl switchblade

PatternWhat it isNote
No. 341sterling gentleman's knifespear + file + cigar cutter; the Gimlet plate — $44/doz.
No. 4S194½SSsterling Congress 4-bladethe Gimlet plate — $50/doz.
A8 “Hunter”pearl switchblade (auto)Schrade-made, up to 8¾″ open — the marquee grail.
Cattle knife3-blade with an Alvord punchthe Empire-made grail; fancy celluloid.
DE82-blade pencracked-ice celluloid — the “DE” example.
Barlowlong-bolster work jacksome made by New York Knife Co. (“pick bone”).

Handles: jigged / green bone (+ NYK “pick bone”), genuine pearl (Marine Pearl on the switchblades), stag, sterling / German silver on the Gimlet knives, and a heavy celluloid palette (Cracked Ice, Waterfall, butter-&-molasses) — un-branded, like Keen Kutter (no “Pyremite,” “Fiberloid,” or “Pyralin”). The diamond-“DE” shield doubles as a maker tell (a plain diamond = Empire). ~ S8

Dating a knife by the stamp — the seller's name is the spine

The stamp reads…DateThe tell
A.F. SHAPLEIGH + DE-in-diamond1864–1901the earliest era — but mostly tools, few folders.
NORVELL-SHAPLEIGH HDW. CO. + DE-in-diamond1902–1918the single hardest pre-WWI marker.
SHAPLEIGH HDW. CO. / DIAMOND EDGE, marked on ALL blades1918–~mid-1940sthe pre-war Shapleigh half.
same, master blade only~mid-1940s–1960post-war (the same mid-1940s transition that dates Keen Kutter).
Val-Test / stainless / modern build1960+not a period knife.

Best tell: “NORVELL-SHAPLEIGH” = pre-1918; otherwise all-blades-marked = pre-~1945 vs master-blade-only = post-~1945. ~ S8

The mark dates the seller — and reaches back to 1863. Like Keen Kutter, every Diamond Edge federal mark names the seller (Norvell-Shapleigh → Shapleigh), not a maker — but where Keen Kutter's 1905 mark can't reach its 1860s name, Diamond Edge's pocket-knife mark (Reg. 0086499) carries a first-use of Nov. 30, 1863 on its face. The marks now sit with Val-Test (which holds Keen Kutter too); a 2010 Black & Decker “Diamond Edge” saw-blade mark is an unrelated decoy. ✓ S4

In period print

Diamond Edge was the house brand of Shapleigh Hardware of St. Louis — the name on the knife is the seller, not the maker — and it rode into stores on a blanket guarantee and a full cutlery line. Dealers from Colorado to Idaho ran it by name for decades. Each quote was read on the original page; all are public-domain newspapers.

Advertisement · 1905

“strictly guaranteed — everyone perfect.”

A closing-out sale ranks Diamond Edge pocket knives beside Sheffield’s famous Geo. Wostenholm I. X. L. — “a chance for every man and boy to get a pocket knife at wholesale cost.”

Cañon City Record, Colo. · July 6, 1905. Library of Congress →

Advertisement · 1908

“‘Diamond Edge’ fine quality Scissors are one of our best lines.”

A hardware store’s cutlery column — Diamond Edge scissors and the new Diamond Edge food cutter, beside its bread, cake and paring knives.

Albuquerque Citizen, N.M. · Feb. 20, 1908. Library of Congress →

Advertisement · 1910

“A sample roll … containing 180 patterns to select from.”

A Christmas run of Diamond Edge pocket knives at Hunter’s hardware — “a Diamond Edge pocket knife for the boy.”

The Beatrice Daily Express, Neb. · Dec. 17, 1910. Library of Congress →

Advertisement · 1911

“sold under a positive guarantee … We will replace any that prove defective.”

The Diamond Edge promise in one line — every blade under the brand backed against defects in workmanship.

The Ronan Pioneer, Mont. · Apr. 7, 1911. Library of Congress →

Advertisement · 1913

“American made, extra quality crucible steel blades, finely finished.”

Diamond Edge carving sets — “best grade” cutlery in pearl and stag, ground ready for the holiday table.

Medford Mail Tribune, Ore. · Nov. 24, 1913. Library of Congress →

Advertisement · 1920

“Diamond Edge knives and razors at Reilly’s.”

Late and local — the brand still stocked by name at a small-town Idaho store after the war.

The Emmett Index, Idaho · Feb. 19, 1920. Library of Congress →

Sources

Primary sources are documents read directly; secondary are reliable leads. Full metadata (identifiers, URLs, quotes) lives in data/diamondedge.json.

  1. The Gimlet (Shapleigh's house organ) — Nov. 1910 p. 587 (the priced plate: No. 341 $44/doz, No. 4S194½SS $50/doz) & Nov. 1913 p. 721 (the same two at $4.00 each). archive.org · PD · image-verified. ✓ S1/S2
  2. Diamond Edge catalog cover, 1927 — the diamond-“DE” logo, the slogan, “Established 1843,” “International Distributors.” 1992 facsimile of PD 1927 content. ✓ S3
  3. USPTO records — DIAMOND EDGE Reg. 0086499 (the pocket-knife mark, first-use Nov. 30 1863, Norvell-Shapleigh) + the slogan Reg. 0146607; owner now Val-Test. Read via USPTO mirrors. ✓ S4
  4. Primary period sources — the 1913 Hardware Reporter Norvell-Shapleigh profile (Elbert Hubbard) and the 1921 Centennial History of Missouri (the firm-name chain, the A.F. Shapleigh biography). ✓ S5/S6
  5. Secondary / leads: THCKK (the corporate chronology, the 1864 adoption, the slogan, the 1940 Simmons purchase); AllAboutPocketKnives / oldpocketknives / Goins (the maker succession, the Empire/Alvord-punch tell, the DE8/A8 models). ~ S7–S9