Covers from 1944 bearing the 2 pesos that are not of the the much scarcer printing on clay paper are useful to help establish the end of postal use for the clay paper printing. All covers have, as expected, plastic censorship tape. This first cover is from July 1944 and has a 4.05 pesos rate.
The other three covers have 2.05 pesos rates. This second cover is also from July 1944.
This cover is from August 1944.
This cover is from October 1944.
