Vintage, Small, Hammer Brand (EO) Easy Opener, Pocket Knife

Vintage Hammer Brand Switchblade Folding Knife

Ivory Original Collectible Folding Knives 2 Blades for sale

What are the best knives to carry (non-fixed blades) with a low profile in your pocket? - Quora

Sold at Auction: Vintage Hammer Brand Switchblade Automatic Knife

Buck Knives 110 Folding Hunter Knife & Sheath – Hardwick & Sons

Shell Handle Ambidextrous Collectible Knives, Swords, Blades, Armors & Accessories for sale

VINTAGE HAMMER BRAND USA 2 BLADE FOLDING POCKET KNIFE R17818

Vintage Letter Opener And Folding Knife By Hammer Brand

Hammer Brand Celluloid Pocket Knife Vintage Hammer Brand

Shell Handle Plain Collectible Folding Knives for sale

Hammer Pocket Knife

Hammer Brand Pocket Knife