Mariano Ponce "G.O." issue of 1970 overprinted in black
by the Government Printing Office, Manila.
Quantity: 11,000,000 pieces.

Original stamp intaglio steel engraved by Thomas de la Rue and Co., London
Photogravure by Joh. Enschede en Zonen, Haarlem, Netherlands, 
in sheets of 100 subjects (10 x 10).
Printed on unwatermarked paper. Issued perforation 14 x 14 1/2.