1918 24c carmine rose and blue, "Grounded Plane" variety, l.h., nicely centered, v.f., signed Sanabria, with 2017 PFC (Cat No. C3) (Image)

Est.$3,000

1923 24c carmine, block of four, n.h., fresh color, fine-v.f., with 2017 PFC (catalogue value for singles) cat. $520 (Cat No. C6) (Image)

Cat. $520, Est.$150

1923 24c carmine, block of four, used on flown "Night Air Mail" Worden cover from New York, August 22, 1923 (one day after First Day of Issue) to Los Angeles, also San Francisco Aug.21, 1923 flown cover franked with 14c American Indian, v.f. (Cat No. C6) (Image)

Est.$200

1930 Zeppelin, 65c-$2.60, set of three, used, fine-v.f., cat. $1050 (Cat No. C13-15) (Image)

Cat. $1050, Est.$450

1930 $1.30 brown, small h.r., fresh color, well centered, with 2007 PSE certificate graded "XF-Sup 95" (SMQ $470) (Cat No. C14) (Image)

Est.$350

1930 $1.30 brown, bottom margin single, n.h., v.f., with photocopy of a 2017 PFC for a block of four from which this came, cat. $575 (Cat No. C14) (Image)

Cat. $575, Est.$350

1930 $2.60 blue, n.h., tiny natural gum skip, v.f., cat. $900 (Cat No. C15) (Image)

Cat. $900, Est.$300

1930 $2.60 blue, used, near perfect centering, with 2018 PSE certificate graded "XF-Sup 95" (SMQ $1,250) (Cat No. C15) (Image)

Est.$750

1930 $2.60 blue, well centered and v.f., canceled (not tied) on Washington D.C. (April 19) FDC addressed to Colorado, with usual cachets, with 1999 AFDCS certificate, cat. $1200 (Cat No. C15) (Image)

Cat. $1200, Est.$500

1924 cover to Newark NJ, 5c Christmas Island Coconut Plantation Ltd tied by Central Pacific Plantation cachet, with U.S. C6 tied by Air Mail Field cancel, addressed to Roessler Newark NJ, three "Via Airplane" labels (two on back), fine (Image)

Est.$150

1924 cover to New Jersey, 5c Coconut Plantation Ltd tied by Central Pacific Plantation cachet, with 24c (C6) tied by "Air Mail Field San Francisco Ca" (Dec 20) cancel, addressed to Roessler East Orange NJ, fine (Image)

Est.$150

1924 cover to New Jersey, 5c Coconut Plantation Ltd tied by Central Pacific Plantation cachet, with 24c (C6) tied by "Air Mail Field San Francisco Ca" (Aug 14) cancel, addressed to Roessler East Orange NJ, with Special Delivery label, fine (Image)

Est.$150

1925 cover to Tahiti, franked with Christmas Island pair 5c Coconut Plantation Ltd tied by Central Pacific Plantation cachet, with pair French Polynesia Scott 27 tied by Papeete Tahiti cancel, and U.S. C6 tied by Air Mail Field cancel (Aug 16), addressed to Roessler's Stamp News East Orange NJ, with arrival pmk (Image)

Est.$150

1927 cover to Tahiti, franked with 10c Coconut Plantation Ltd tied by Central Pacific Plantation cachet, with French Polynesia 34 tied by Papeete Tahiti cancel & U.S. C7 tied by Air Mail cancel, addressed to Roessler East Orange NJ, fine (Image)

Est.$150

1927 cover to Tahiti, franked with 10c Coconut Plantation Ltd tied by Central Pacific Plantation cachet, with French Polynesia 34 tied by Papeete Tahiti cancel & U.S. C7 tied by Air Mail cancel (Mar 11), addressed to Roessler East Orange NJ, fine (Image)

Est.$150

1930 $2.60 blue, v.f., used on 5c stationery entire, Europe-South America round-flight addressed to Switzerland, with Friedrichshafen arrival pmk on back (Cat No. C15) (Image)

Est.$350