Help me ID this generator

[ndnchf]

I suspect this is a mixed bag, but would like to hear from you guys. I rebuild a lot of model A and flathead V8 generators and know how they work. I'm less knowledgable about all the little year by year (and month by month) differences - especially the '38 - '41 period where there were many changes and variations.

It is a 2 brush and has output, ground and field terminals. No date code but there is what may be a rebuiiders stamp at the pulley end. The pulley is 4.050" diameter with a keyway, but no key is present. The fins are curved, not straight.

I'm digging through my cores for the next one to rebuild and pulled this one out. But it may very well be mix of parts and therefore not worth the trouble. May be better just to use for parts.

What do you guys think?

Thanks Steve