cover 1942 (30 Mar.) locally addressed envelopes (3) from Penang C.P.O. bearing Straits with Okugawa seal h.s. 1c., 2c. pair and 3c.; 1c. pair (defective corner) and 3c. pair, and 8c.; each cancelled with JD1 c.d.s. which was used on this first day of issue only