The 1E2, including 'Servicio Oficial':
The 1E3 including 'Servicio Oficial':
The 1E4 including 'Servicio Oficial':
Clays and Straight Rays from before 1945:
The NGR unwatermarked regulars and officials:
The unwatermarked opaque (NOP) and Straight Rays clear (2C):
There are a few errors and omissions, but this is the starting point I need for now.
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