The Papers - Los Papeles
Acquiring a solid understanding of the papers is a key step to be able to classify stamps as they are acquired. {Adquirir un entendimiento solido de los papeles es un paso clave para clasificar correctamente sellos de esta serie segun son adquiridos.} |
1L2 (1952) |
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1L4 (a somewhat worn out watermark of the 1L2-con la filigrana con desgaste del 1L2) |
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