Proof Providence, R.I., 5c Gray Black on white ivory, Sperati forgery, large die proof (10X1RP1), 68 x 47mm., signed Sperati in pencil on front, Sperati backstamp and ms. '43' on reverse, fresh and very finephoto est.

Details
Proof Providence, R.I., 5c Gray Black on white ivory, Sperati forgery, large die proof (10X1RP1), 68 x 47mm., signed Sperati in pencil on front, Sperati backstamp and ms. '43' on reverse, fresh and very finephoto est.