Quote:I think you knocked it out of the park on this one.
It appears to be RCD-1c-1940S-16 Stage B & 17R (unlisted). The
Retained Cuds and mm location look right.
Cuds-on-coins has an image for RCD-1c-1940S-16 Stage A & 17R and has a separate image RCD-1c-1940S-16 Stage B that looks exactly like your obverse
Retained Cud. Significantly, cuds-on-coins states for the Stage B that "The reverse die has been changed." Your coin appears to have the original reverse die.
I think you may have a transitional coin before the reverse die change that is unlisted on cuds-on-coins.
I would definitely contact JC Stevens and send him these pictures to see what he thinks.