Airmail - International Fair "INTERFER '71" - Guatemala - Overprinted "FERIA INTERNACIONAL "INTERFER-71" 30 Oct. al 21 Nov" 1971
Now showing: Guatemala - Postage stamps - 1971 - Airmail - International Fair "INTERFER '71" - Guatemala - Overprinted "FERIA INTERNACIONAL "INTERFER-71" 30 Oct. al 21 Nov" - 1 stamps.