The issues in this range received heavy usage, with the exception of the 20cLC, which saw use mostly during World War II. The details below are for the 20cLC, and show several plate varieties. Upper left variety has a dot on the inner ring. Upper right is a remarkable plate crack within the center, from the inner ring to the cow's neck. Lower left is break under the C of CENTAVOS, and lower right is a plate variety with a scratch lower right corner of the 20 cartouche.

Below are two representative 25c plate varieties. Lower left is a 25c1E with a scratch outside the upper right corner. Below right is the remarkable "slope" variety on a 25c2: note that the top edge of the design slopes in going from left to right. This plate variety should not be confused with scanning angle of the image.

Below is a 30cNGR with a distinctive plate variety: not the indentation under the outer line top center of the stamp. Below is a detail of this plate variety.

Here are two 40c plate varieties. The top specimen is a 40cCL, and bears a noticeable break in the inner top edge line. The bottom specimen is a 40cNGR with distinct characteristics: two dots on top of the P of REPUBLICA, and extra ink in the lower left corner of the ;left 40 cartouche. I show details for both specimens.