Banjo rearend, Where are the numbers?

Are there numbers somewhere on a banjo rear? How do you know the difference between a model A and a V8 rear? Any info would be helpful!

Thanks

 

i think the ratio is stamped on the case neck bottom in factions?

 

On the later models the numbers are stamped into the reinforcing web on the bottom of the banjo. You usually need a wire brush to find them. 9 37 would be a 4.11 I have several 32 rears. none were stamped. I don't know when they started.

 

3.54 is stamp 11-39
3.78 " 9-34
4.11 " 9-37
4.44 " 9-40
4.55 " 9-41
It's stamped on the bottom side, but if they have been run over a rock pile you can't always read them.

 

How do you know what year is what?

 

How much power can a stock banjo handle?