German Eye Brand Four-Blade Congress 3.5 Closed, Yellow Celluloid

Congress Pocket Knives - Knife Country, USA

Were there any other 4 bladed propeller, single engine fighters

German Eye Yellow Collectible Folding Knives for sale

Congress Pocket Knives - Knife Country, USA

Congress Pocket Knives - Knife Country, USA

Congress Pocket Knives - Knife Country, USA

German Eye Yellow Collectible Folding Knives for sale

Auction Lots - Schmitt Horan & Co.

German Eye Brand Congress Yellow 56Y

German Eye Brand Carl Schlieper Sodbuster Lockback Folding Knife 3.82 Blade, Yellow Celluloid Handles - KnifeCenter - GE99YL

German Eye Clodbuster Jr., Yellow Celluloid Handle

German Eye Brand Two-Blade Congress 3.38 Closed, Stag Handles

Eye Brand Congress Knife, Large 60 Pattern, Stag Handle, EB-60DS