Here is a complete run in the beginner's collection of the 1L values from 50c to 20 pesos.
50c1L1 (paper with laid lines)
50c1L2 (often found with large RA)
50c1L3 (white paper, bright yellow design background)
50c1L5 (Zarate, unreadable watermark)
A small selection of 2p1Ls, not selected for specific papers.
The 20p1L2, a desirable stamp.