GB E11 1964 FDC of the Tenth International Botanical Congress 5 AUG 1964
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- Source: eBay UK
A E11 FDC of the Tenth International Botanical Congress [ordinary] with London FDI Cancel dated 5 AUG 1964. Complete with insert but written on. Rear flap not stuck down and with original gum. Light hinge remains to rear flap.