Foro de Filatelia Argentina

These two blocks are over the paper I refer to as 2D, with the straight rays diffuse watermark.

The first block is a 12c Red





The second bock is a Large Format 20c Bull (20cLC)

2C and 2D examples showing the watermark

These are 2C examples (diffuse, grayish paper).





There are 2D examples (clear, bright white paper).