1983, The Papacy and Art - Exhibition in the USA, 100L- 400L, souvenir sheet of six, silver color is printed twice, perfect quality item, full OG, NH, VF and according to Sassone is unique, E. Diena certificate, C.v. €10,000, Est. $2,500-$3,000 (Image)

Air Post stamps. 1948, Archangel Raphael and Young Tobias, 250L brownish black and 500L ultra, complete set of two, bottom right corner sheet margin blocks of four, the high value block has 10-tip separation at left, nevertheless post office fresh, full OG, NH, VF, C.v. $2,410++ (Image)

Air Post stamps. 1949, 75th Anniversary of the UPU, 300L ultra and 1000L green, top sheet or top left corner sheet margin blocks of four, full OG, NH, VF, C.v. $720++ (Image)

Zeppelin Flights. 1932 ( May 2-6), 4th SAF cover to Brazil, franked by ten stamps, including two blocks of four, tied by Vatican City ''29.4.32'' ds, Munich transit (30.4. - on reverse), Berlin-Friedrichshafen connection and Flight cachet are on front, Santos ''6.Mai.32'' arrival marking, mostly VF and very scarce, Sieger #157, €950, Est. $700-$800 (Image)

Zeppelin Flights. 1933 (May 29-30), Italy Flight mixed franking postcard to Friedrichshafen, bearing two values, cancelled ''28.5.33'', uprated by Italian Zeppelin of 3L, tied by circular Rome ''29.5.33'' ds on front, Rome machine marking with the same date is on reverse, blue flight cachet, green Friedrichshafen ''30.5.33'' special Zeppelin receiver, mostly VF and scarce both types of Rome postmarks on one item (not priced in the Cat.), Sieger #208 Va/Vh, Est. $500-$600 (Image)

Zeppelin Flights. 1933 (June 3), 2nd SAF cover to Barcelona, franked by two stamps, tied by Vatican City ''3.5.33'' date stamp, uprated by two Italian adhesives with Rome cancel, Friedrichshafen ''3.6.33'' connection, green flight marking, Barcelona boxed drop of ''3.Jun.33'' on reverse, mostly VF and scarce cover to Barcelona destination, not listed in Sieger, Frost #127-183D, C.v. $1,400, Est. $700-$800 (Image)

Zeppelin Flights. AIRSHIP ''HINDENBURG'' FLIGHT: 1936 (May 5-9), 1st NAF mixed franking cover to USA, bearing by two stamps, tied by ''4.5.36'' Vatican City ds, uprated by two Italian adhesives, Friedrichshafen ''5.5.36'' connection, flight cachet in red (letter ''c'' for Frankfurt), NYC ''May.9.1933'' receiver, mostly VF and scarce, Sieger #406, €700++, Est. $500-$600 (Image)