Easy open knives feature a notch near the wide end of a common jack knife pattern, typically a swell end knife. The spear point blade can either be opened with the nail pull or by grabbing the exposed portion of the blade in the notch. Sometimes a nail notch is not even present on the blade of an easy open knife.

Easy open knives were especially popular from the early 1900s to the 1950s and were made by companies such as Robeson, Remington, Case XX, Camillus, Schrade Cut Co, and more.
Check out these vintage easy open knives that are currently available on eBay. I appreciate any traffic from these links as I earn a commission when an item is purchased, at no extra cost to you. THANK YOU!!! – Jesse, oldpocketknives.com
eBay
$99.99
Vintage WW2 Era Pal Blade Co USA Two Blade Easy Open Jack Knife Jig Bone Handle
eBay
$377.00
EC Simmons Easy Open Jack Knife 1870-1940
eBay
$375.00
ANTIQUE BALDWIN CUTLERY POCKET KNIFE TORTOISE EASY-OPEN JACK TIDIOUTE PA VINTAGE
eBay
$299.95
Winchester, Trademark, Made in USA., 2930 Easy Open Jack Knife, 3 1/2"
eBay
$199.99
Vintage Imperial EZ Easy Open Jigged Bone Folding Pocket Jack Knife W/ BAIL
eBay
$192.50
Antique VENTURE HM SLATER Sheffield Pocket Knife Easy Open Jigged Bone Knife (U)
eBay
$274.95
Winchester, Trademark, Made in USA., 2959 Easy Open Jack Knife, 3 3/8"
eBay
$129.00
1930-1940's Camillus N.Y. 4-Line "Easy Open" Bone Pocket Knife w /2 Blades-RARE
eBay
$200.00
Vintage 3-Blade Pocketknife Brown Bone Handle Slipjoint w/ Can Opener & Punch
eBay
$498.00
WW2 Easy Open Imperial Navy Utility Knife Lot 1936-1942
