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Greek 25 V 1937 JNF air cv ex THESSALONIKI to JLEM, stamped by exchange control
Mandate postal links: 25 V 1937(?) airmail commercial cover on Greek Jewish National Fund branch stationary from THESSALONIKI to JNF in JERUSALEM, franked 14Dr & tied by 2 strikes of local postmark + large red circular cachet of the Greek "exchange control" authority (ΥΠΗΡΕΣΙΑ ΠΡΟΣΤΑΣΙΑΣ ΕΘΝΙΚΟΥ ΝΟΜΙΣΜΑΤΟΣ-ΘΕΣ/ΝΙΚΗΣ) & Greek airmail etiquette; slit open at top, small tear next to overprinted social welfare fund stamp.
