01 January (Fernando Poo ) within release Overprint on Revenue stamps goes into circulation Stamp Revenue stamp overprinted in red face value 5 Spanish centavo
Stamp Revenue stamp overprinted in red in catalogues | |
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Stanley Gibbons: | Sg: ES-FP 31b |
Edifil: | Edi: ES-FP 41Ab |
Stamp is square format.
Also in the issue Overprint on Revenue stamps: