Cover with handstamp of 25th anniversary of Marambio Antarctic base, sent from Río Gallegos to the base on 29/OC/1994, with mark "CORRESPONDENCIA DEMORADA", and arrival backstamp 11/MAR/1997
RARE RATE for radio hams: Cover sent from Esperanza Antarctic base to Mendoza on 14/SE/1985, with special reduced rate for radio hams of $a15 (paid with 15 stamps of $a1 GJ.2105A), excellent and unusual!
