Original overprint set, complete in pairs mint never hinged, certificate Ney VP (2016) "with the plate flaw 230I / IX and 237I / VII and the overprint error 235I / II. The depicted stamps in part with sheet margins as well the overprints are genuine. The Michel-no. 235I and 236I have very nice overprint shiftings. The quality is perfect. " Michel 9000,