cover 1942 (Mar.) Okugawa seal on 1c. and 2c. pair (inverted), Ochiburi seal on 1c. (inverted) and 1942 (Apr.) "DAI NIPPON/2602/PENANG" on 1c. vertical pair (misplaced on the upper stamp), all tied by "POSTAGE PAID/PENANG" double-ring d.s. on locally addressed 1942 (21 Apr.) philatelic envelope and showing "Nippon, Largest Exchange Club in Asia" label; some minor fox spots