Barber Half Diagnostic ?

shorecoll

Are there diagnostics on barber halves such that you can tell 92-O and S, 97-O and S etc. on coins that are so worn the mm doesn't show? If yes, what reference (if any) shows these?

dogwood

I would think not.
You'd be talking about low value coins anyway.
Unless you were sure you had a 92 micro o

Cratylus

I'm not aware of any such diagnostic differences on those dates/mintmarks.