Papers to-do list

The current list of papers is:

The pre-1945 so-called Wavy Rays watermark papers:

1. 1E1, cream paper from 1935-36-37. Rectangular symmetric grid.
2. 1E2, pale white paper from 1937. This paper was apparently not used on the small format values.
3. 1E3a, white paper version of 1E1. Rectangular symmetric grid.
4. 1E3b, Rectangular asymmetric grid.
5. 1E3c, Box symmetric grid.
6. 1E4, horizontal watermark on the large format values. Some small format stamps were printed on this paper.
7. 1E5, similar to 1E4 but with much smaller RAs.

The 'other' papers:

8. CL1A, first clay of 1939.
9. CL1B, second clay of 1943.
10. 2D, diffuse Straight Rays of 1943.
11. 2C, clear Straight Rays of 1949.
12. NGR, unwatermarked grid paper.
13. NOP, unwatermarked opaque paper.
14. CL2A, third clay of 1950.
15. CL2B, fourth clay of 1952.

The post-1950 so-called Wavy Rays watermark papers:

16. 1L1, laid lines.
17. 1L2, large RA of 1952.
18. 1L3, bright white of 1955.
19. 1L4, the worn out watermark mesh paper, which may be the same as 1L2.
20. 1L5, the Zarate paper, of which there may be more than one.
21. 1L6, the grid paper found on the 40c and 2 pesos.

and finally,

22. CL3, the clay paper unique to the 25c 'Servicio Oficial'