Challenge Cutlery Company, Bridgeport, Connecticut. 1905-1928 Very fine example with beautifully jigged bone handles, rat tail iron bolsters, nickel silver shield and brass liners. Knife measures 3-5/8\" closed great snap open and close on both blades no blade wobble. There is a small chip missing from bone on pile side near center pin. Please view all photos they are part of the description. This knife has not been cleaned. Please see my other sales, I will combine shipping on multiple purchases. USA shipping only.