This is a rare vintage Coach Large Slim Clutch bag from the 1970s. Cognac brown leather, heavy brass zipper, one inside pocket and a short non-adjustable wristlet strap. Made in New York City with serial number 637-5083. Shows some light wear and marks, which may come out with a good clean and polish. There are some spots on the small inner pocket and inside the bag. See last photo for details.
Top to bottom - 8 inches
Width side to side - 12 inches
Depth front to back - 1 inch