1E1, issued January 1936.
1E2, from 1937
1E3, from 1939 to 1944
1E4, from 1940
1E5, from 1943/44, rare, small RA
NGR, from 1945
NOP, unwatermarked opaque from 1947/48
2C, Straight Rays from 1949
CL2, clay from 1952
1L1, from 1951, deep orange background
1L2, from 1952, pale red, medium to gigantic RA, poorly defined
1L3, from 1955/56, bright white paper and deep yellow background
1L4, similar to 1L2, with a partially visible watermark
1L5, similar to 1L2, white Zarate, rare