1950
Literary Campaign – Overprinted “ALFABETIZACION”


[Literary Campaign - Overprinted "ALFABETIZACION", type YV]


[Literary Campaign - Overprinted "ALFABETIZACION", type YW]


[Literary Campaign - Overprinted "ALFABETIZACION", type YX]


[Literary Campaign - Overprinted "ALFABETIZACION", type YY]


[Literary Campaign - Overprinted "ALFABETIZACION", type YZ]

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