Here are postmarked specimens of the 24 centavos San Martin. Here are quick links to pages with large images of each of the four values: 8 centavos Rivadavia / 16 centavos Belgrano / 20 centavos Dalmacio Velez Sarsfield / 24 centavos San Martin ; to pages with high quality specimens of each of the four values: 8 centavos Rivadavia / 16 centavos Belgrano / 20 centavos Dalmacio Velez Sarsfield / 24 centavos San Martin ; to pages with some postmarks for three of the values: 8 centavos Rivadavia / 16 centavos Belgrano / 24 centavos San Martin ; and pages for the 24 centavos San Martin showing: plate varieties / banknote selvage / perforation varieties

The dark color of this stamp often makes postmark identification difficult

Note usage in 1886

Here is another barely legible postmark

The date is March 24, 1884

Buenos Aires, March 24, 188?

Buenos Aires