5c Large "COMMONWEALTH" K.P. Franking
1944 JUNE 26: MANILA to CALAPAN, MINDORO. With 5c large "COMMONWEALTH" K.P. properly used on its first day of issue. Postal inspector's penciled initial on the postmark.

Calapan Post Office re-opened on January 6, 1943.

VERY SCARCE PROPER USE OF THE ISSUE