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 Label piece, the affixed Rizal O.B. at upper right corner being a standard practice for easy identification of package contents. Stamped "O.B." in violet. With date of "FEB 11 1941 - 28". This entry, in particular the number "28" after the date, could represent either be a Bureau of Printing control entry or Bureau of Posts receiving entry. |
1941 DECEMBER 18: ALITAGTAG, BATANGAS to MANILA 4c Single rated official mail from the Office of the Treasurer. Invalid usage of the issue but still passed through the mail system. |
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