Lot 315 Argentina (C) 1959, 1975 & 1979 Commemorative Issues, 3 Very Fine Used Covers, One Is an FDC For Geophysical Year With Penguin Cachet, The Other Two Are From Different Antarctic Bases With Different Cachets

3 very fine used covers from the 1959, 1975 & 1979 Commemorative Issues, one is an FDC for geophysical year with penguin cachet, the other two are from different Antarctic bases with different cachets.

Scott doesn't list these varieties, so we estimate them at $20. The stamps offered here grade 75 as follows:

Centering/Margins: 35/60

Paper Freshness: 5/5

Colour: 5/5

Impression: 5/5

Absence of Visible Paper Flaws: 5/5

Perforations: 10/10

Cancellation: 10/10