cover 1942 (29 Aug.) envelope registered to Singapore bearing, on reverse, Negri Sembilan 5c. (3) handstamped in red and Perak "DAI NIPPON" 8c., all tied by "IPOH" double-ring d.s. (Type D22) with Japanese type arrival c.d.s. alongside. Photo

Details
cover 1942 (29 Aug.) envelope registered to Singapore bearing, on reverse, Negri Sembilan 5c. (3) handstamped in red and Perak "DAI NIPPON" 8c., all tied by "IPOH" double-ring d.s. (Type D22) with Japanese type arrival c.d.s. alongside. Photo