Classic automotive diagnostic tool used for checking engine timing on older vehicles. Model/part number appears to be 161.213400. Made in the USA. Great piece for.
Craftsman Timing Light Vintage 161.213400 Sears - No Cable Included (FLS69)
Vintage SEARS Craftsman Timing Light Gun 161.213400 Made In USA With Adapter
CRAFTSMAN Timing Light 161213400 Sears Vintage NO CORD
Vintage Sears Craftsman Timing Light, Remote Starter Switch, Compression Tester
Vintage SEARS Craftsman Timing Light Gun 161.219401 Made In USA With Adapter