Southern Nigeria 1903 Madagascar UPU KEVII Stationery Specimens

MADAGASCAR UPU ARCHIVE RECEIVING AUTHORITY SPECIMENS: 1903 KEVII 1d carmine on buff POSTCARDS (3) and pair of 2d REGISTRATION ENVELOPES overprinted "SPECIMEN" and handstamped with circular "POSTES ET TELEGRAPHES / COLLECTION / DE BERNE / MADAGASCAR" in red. Affixed to archive ledger sheet headed Soudan Nigeria with Enveloppes, cartes postales. A unique group sent from the UPU in Berne to the Madagascar Post Office where they were defaced with the Madagascar handstamp. VF, rare, most attractive.