Box for Hammer Brand Pocket Knives, manufactured by the New York Knife Co., Walden, New York, undated

The upper left corner of the label reads

VintageVintage NEW YORK KNIFE CO Model #187 Swell Center Lockback

Vintage 1930 Hammer Brand Pocket knife. New York Knife Co., Walden

The Project Gutenberg eBook of A Life of Walt Whitman, by Henry

Vintage New York Knife Co Walden Hammer Brand Senator #2048

Sold at Auction: 1053, Mechanical 1920's to 1930's Hammer Brand

Hammer Brand New York Knife Co USA 3.87 Muskrat Stag Folding

OMNIA - pocket knives

Date:Unknown - Digital Commonwealth Search Results

VintageVintage NEW YORK KNIFE CO Model #187 Swell Center Lockback

2020 August 18 & 19 Edged Weapons, Armor, & Militaria by Morphy

Knife Spotlight Archive

OMNIA - pocket knives

Hammer Brand Knives Peanut - KLC13822 - The Cutting Edge

ANTIQUE NOS SUPER CLEAN HAMMER BRAND POCKET KNIFE 1938 – 1941 UTILITY FOLDING ! – St. John's Institute (Hua Ming)

Sold at Auction: Hammer Brand, LOT OF 2 VINTAGE HAMMER BRAND IMPERIAL CUTLERY CELLULOID HANDLE TOOTHPICK AUTOMATIC KNIVES

Hammer Brand Pocket Knife

Hammer Brand knives Whittler - KLC09060 - The Cutting Edge