Vintage Retractable Chain Pin

Ketcham McDougall Key-Keeper Vintage Pin Brooch with retractable chain, from the 1950s. Designed for a lady to fasten this to the inside lining of her hand bag to hold keys; could also be used as a watch fob; nowadays it would be a great badge holder or glasses holder. The silver pin is 1" diameter, with a standard long back clasp; the chain pulls out about 13.5"; the hook/clasp is about an inch long and is in very good condition - it still closes well. Excellent condition.