cover 1942-43 U5 (2) to Singapore and Ipoh, both bearing Perak "DAI NIPPON/YUBIN" 8c., and Perak "DAI NIPPON/YUBIN" 2c. card, all cancelled by Kuala Lumpur c.d.s.; also 1943 (18 Oct.) U5 registered to Singapore bearing, on reverse, Perak "DAI NIPPON/YUBIN" 1c., 1943 Pictorial 2c. (3) and Ploughman 8c. pair, all tied by light Japanese c.d.s. and showing red No.10 censor chop alongside.