Miguel Hidalgo 5 and 10 pesos blue, fine/very fine mounted mint (perforation as usual, some offset at reverse), cat.v. 850

University of Mexico City 1 centavo - 20 pesos, very fine unmounted mint (nos. 681, 686 and 690 hinge remnants) with 1985 Enzo Diena certificate for nos. 689 and 690, cat.v. 2800+

Fulgencio Yegros with C overprint, 2,50 pesos yellow brown on registered letter (with content, signed expedition paper, written Dolderia Maca-Indianer Chaco, Kilometer 783 and picture) from explorer Otto Wili Ulrich to mr. Walter Blank New York, received New York 20.1.1932, by runner from Chaco to Rio Confuso, Pony express to kilometer 400, canoe to Rio Paraguay, bull cart to Monte Sociedad and by paddle steamer to Asuncion, very interesting

Air Mail. Graf Zeppelin $ 1,30 brown on return cover Südamerikafahrt from New York 24-4-1930 to Friedrichshafen (Germany), very fine

Crash cover 22-12-1944 to Michigan City, Ind. with label United States Post Office New York I N.Y. This letter was recovered from a mail carrying airplane that was in an accident. Respectfully yours, ALBERT GOLDMAN, postmaster. Not mentioned in Nierinck.