In my article on the 1-peso note from Mexico ( see 1-peso note ), I made a simple grid, with all possible letter combinations.
The non-emitted combinations were marked in black, and so I ended with some 225 existing combinations for the 1-peso note.
The same basic grid was used for all possible series of the 5-peso note.
When only the existing series are left over, the grid becomes workable:
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| 5 peso grid 1925-1970 |
to be continued...
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