the papers of this issue

Here are the papers as I currently understand them. There are a few gaps in my current study of these...the numbering scheme is my own given that there is no published scheme that addresses the papers correctly/completely.

(01) 1E1: The first early paper with wavy lines from October 1935, which I find in use thrroughout 1936.




(02) 1E2: Mostly used in 1937/38.



(03) 1E3: Mostly used in 1939. At times easily confused with the 1E1 paper.



(04) 1E4: Mostly used in 1940.



(05) CL1A: The first clay papers from 1943. The watermark is similar to that of the 1E4 paper.



(06) CL1B: Watermark is perpendicular to the previous paper.



(07) NGR: unwatermarked grid



(08) NOP: opaque, thick, unwatermarked, and uncatalogued. Easiest to distinguish for the high values (5, 10, and 20 pesos).



(09) 2C: RA straight rays; neat

(10) 2D: RA straight rays; diffuse

(11) 2N: RA straight rays; narrow features

(12) CL2A: thin, plastic-like clay paper



(13) CL2B: thin, plastic-like clay paper, opaque and almost imposible to back scan!



The five late papers from the 1950s

(14) 1L1:



(15) 1L2:



(16) 1L3:



(17) 1L4:



(18) 1L5:



(19) Official clay paper, similar to CL2A, thinner, and easy to back scan for the 50c, and slightly thick and with poor perforations for the 25c.