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Earthquake 1913, Bulgaria

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Bulgaria, Airship, 1. South America Flight 1933, registered letter from Sofia 2. 5. to Montevideo, via Berlin “mLb” and Condor connection to Uruguay, all flight stamp on face, arrival 9. 5. 1933

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Bulgaria 1880 (June 10): Cloth envelope sent registered to Vienna franked by single 1879 1 fr. black on red neatly tied by “Pleven” cyrillic cds in blue. Registration handstamp at left and reverse with Widdin cds and Vienna arrival cds. File fold well away from the adhesive and some minor edge wear to envelope but a rare single franking. Note: Triple rate of postage 3 x 25 cents registration 25 cents.