Yep Guys, that's what I'm finding also. I looked in my 1929-50 manual, 1929-1954 manual, 1929-1957 manual, 1949-1972 manual and come up empty.
I tink the OLTruck guy hit the nail on the head. The yellow paint made me think that it might be of some kind of impliment. Actually it has four layers of paint, the Delco Black, Yellow, then Red then Yellow. And yes, I forgot, the black tag would indicate that it's a 6v.
I would just like to know what the capacity of the generator is. The pully could be changed to a more friendly one. But I suppose the chance of my finding a Delco Master Catalog to ID the specs is next to impossable.
Denny Graham
Sandwich, IL