Antique Folding Knife By W. Gay & Son folding from a short blade to a long blade with leather scabbard. The grip is made of horn or antler. The blade reads: W. Gay & Son 113 High Holborn & 93 Regent St. William Gay & Son were makers of razors and boxes located at 113 High Holborn, 93 Regent Street, London. The blade folds out to the longer position when pushing on the bottom in the handle.  To retract you need to pull the lever at the bottom of the handle. Dimensions: Folded position: 22.6 cm / 8.89 inches Open position: 31 cm / 12.2 inches