This is a Full Set of Three Imperial and One Hammer Brand (they were all made by Imperial in the same factory at the same time) 1-Blade Texas Toothpick Folding Pocket Knife, or as Imperial
Vintage Imperial Pocket Knife W/ Celluloid Handle
Vintage Remington R645 Switchblade Folding Knife
Hammer Brand Knife
Hammer Pocket Knife
Vintage Imperial Hammer Brand Candy Stripe Utility Jack U.S.A. Switchblade Knife
Case Knives - All Models the Most Reviews
Vintage Hammer Brand Switchblade Automatic Knife
Hammer Brand Knife
Vintage Imperial PROV USA Texas Toothpick or Fishing Knife w/Foil Scales Swordfish c.1946-1956
Full Set of 4 Imperial or Hammer Brand Toothpick Pocket Knives w/Foil Covers & Outdoor Scenes 45-56
VINTAGE FANCY CANDY STRIPE HAMMER BRAND USA FOLDING POCKET TOOTHPICK TICKLER FISH KNIFE KNIVES OLD
How to Buy a Good Pocketknife or Multitool – Scout Life magazine
My grandfather's knife collection : r/knives
My grandfather's knife collection : r/knives