"DIAMOND EDGE. Trademark Information
Val-Test Distributors, Inc.
[ AUGERS, AUGER-BITS, REAMERS, GIMLETS, BORING-COUNTERSINKS, CUTTING-PLIERS, CUTTING-PINCERS,
AXES, HATCHETS, FILES, BUSH-HOOKS, ] CORN-KNIVES, [ CANE-KNIVES, ]BEET-TOPPING KNIVES, [ BROOM-CORN KNIVES, ] SKINNING-KNIVES, [ CHISELS, ] DRAWING-KNIVES, [ COLD CHISELS, ] KNIFE-EDGE CAN OPENERS, MEAT-CUTTERS, FOOD-CHOPPERS, [ SCYTHES, CLEAVERS, MINCING-KNIVES, BELT PUNCHES, TICKET-PUNCHES, GRASS-SHEARS, SHEEP-SHEARS, TINNERS' SNIPS, TOILET CLIPPERS..."
http://www.trademarkia.com/diamond-edge-71014612.html
From the Archives of
The Winchester * Keen Kutter* Diamond Edge Chronicles
Volume 1, Number 3 & 4, March 1997
The Official Publication of The Hardware Companies Kollectors Klub
www.thckk.org:
"Shapleigh celebrated its 100th Anniversary in 1943. In 1955, the directors
sold the company to Curtis Mfg. Co. He continued to operate the business
under the Shapleigh Hardware name until closing in the early 1960's. ValTest
owns the rights to the Keen Kutter and Diamond Edge logos today."
http://www.thckk.org/history/shapleigh-history.pdf
FWIW It seems possible that the axe could have been distributed by Val-Test post Shapleigh?
Bob