Here's another oddity, a double 5 on the shirt of the stamp. No listing in Unitrade and I can't find my Darnel book. Also would this maybe a modern re-entry, might just send it to that site to see what they say. Well enjoy and comments please.
PS This is a Se-tenant of 674 and 675 vertical with no apparent variety on 674, just the black 5 on 675.

