cover Air Post Covers, 1929, three, one bearing block of four of no. 325 and center line block of four of C3 tied by New York duplex cancels on cacheted First Round the World Flight cover with Friedrichshafen backstamp; one bearing nos. 551 (two), 680, C4, C5, two C6 with Oct 2, 1929 Miami duplex and target cancels on F.A.M. to Buenos Aires; last bearing nos. 650, C4-C6 and C8 on 2c Carmine entire no. U522, all tied by Jul 8, 1929 Miami duplex or target cancels on F.A.M. to Santiago, Chile, all appear nearly fine-very fine