Gray & David starter-generator as used on circa 1915 Cadillacs. Starter is a type Y (6 Volt) No. 13522 and generator (dynamo) is a type T (6 Volt) No. L1857. Unit in good condition.
Broken down. Not working. Could bake a working engine from the 2. Found in grandfathers / uncles garage along with large amount of other de Dion parts..