59th AUCTION - day 4

Thematics: antarctic: 1957 "Operation Deepfreeze II": Four registered express co

Thematics: antarctic

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1957 "Operation Deepfreeze II": Four registered express covers from "Pole Station Antarctica U.S.N. MAR 1 1957" to Firenze, Italy with US/Italian combination frankings, each with 15c. US franking (tied by the Pole datestamp) and each with different Italian 1956 Olympics stamp in block of four (= complete set) tied by Firenze datestamp.

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Condition: Cover