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HAMMER BRAND IMPERIAL PROV. RI. USA 1945-55 VINTAGE AMERICAN AUTOMATIC – Latham's Vintage Sales
HAMMER BRAND IMPERIAL CUTLERY 1945-55 AMERICAN AUTOMATIC KNIFE TOOTHPI – Latham's Vintage Sales
Hawker Services, LLC Auction Catalog - Auction #664 Online Auctions
Imperial candy stripe with broken spring - Knife Forums
Switchblades
Sold at Auction: Vintage Hammer Brand Pearl Switchblade Knife
New York Knife Co. Walden Hammer Brand 1880-1931
HAMMER BRAND IMPERIAL CUT 1945-55 VINTAGE AMERICAN AUTOMATIC KNIFE 3 1 – Latham's Vintage Sales
Old Hammer Brand knife
Hammer Brand + Colonial Shur Snap Auto Knives - Retro Knives
Vintage Imperial Brand Switchblade Folding Knife
HAMMER BRAND IMPERIAL CUT 1945-55 VINTAGE AMERICAN AUTOMATIC KNIFE 3 1 – Latham's Vintage Sales
Vintage Remington R645 Switchblade Folding Knife
Vintage American, AIK - Adams International Knifeworks