553 | Switzerland. Airmail

Automatically generated translation

English Yvert 15. 1934. 2 f chestnut. Round trip airmail to ZURICH, transported on the 1st Flight ZURICH-ISTANBUL-ZURICH. Postmark SWISSAIR / BALKANFLUG, in red and on the front flight markings, in red and transit ISTANBUL. MAGNIFICENT AND RARE.

International Auction #136

Wednesday, 7 October 2026 | 16:00

Lot 553

Starting price 30€

Illustrative price in other currencies

$ 34
£ 26
CHF 28

Updated 2026-09-23 00:00:04

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Technical editor of the description:
Hermenegildo Trillo Barragán

Philatelic technician of Spain, Colonies and Worldwide

htrillo@iberphil.com