1940 AUGUST 31:
MANILA to WASHINGTON

Department of Commerce penatly envelope used as parcel label, with 20c O.B. combined with 1935 Pictorial 8c O.B. issue and 2p small
"COMMONWEALTH" for proper 2p-28c Fourth Class parcel rate, maximum weight of 4.55 kgs computed at 30c for the first 455 grams and 22 centavos for every 455 grams thereafter.

Very Unique Mixed
O.B. Combined With 2p Pictorial
1941 JUNE 5: MANILA to CALIFORNIA
Department of Agriculture & Commerce official mail endrosed VIA CLIPPER, franked with 20c B/4, 4c large O.B. Pictorial and 16c small O.B. Pictorial for proper 1 Peso single air rate, 15 grams maximum weight.

Very Rare Three O.B. Isssues Combination