Less common issues of the 25c 'Servicio Oficial'

The 1E3 and 1E4 printings are the most common. Here are the others.

1E2, reasonably uncommon but not as rare as the 50c1E2-SO.



NGR, reasonably uncommon but not as rare as the 50cNGR-SO. Here are two shades.





NOP, just as rare as the 50cNOP-SO.



1L 'dark'



Here is the watermark. This stamp is a 1L2. There is a second 1L printing with a very light pink color that is rare. I did not find any in the large sample I am using here that I recently acquired.