Flagship sale of U.S. and Worldwide #655

Zeppelin Flight: 1936, Hindenburg Return Flight covers, group of seven covers with unusual frankings, all of which include CE1 or CE2 (mostly blocks of 4), all bear flight cachet and are backstamped with the Frankfurt machine receiver and addressed to one Henry Brett in Watertown, Mass., Very Fine. Sieger 409C; €280 ($380).
Estimate $200 - 300.