1918 24c carmine & blue, variety Plate shifted to left ("Fast Plane"), unused without gum, with sheet margin at bottom, v.f. (Cat No. C3var) (Image)

Est.US$250

1930 Zeppelin, 65c-$2.60 set of three, n.h., well centered, faint overall toning, otherwise v.f., cat. $1675 (Cat No. C13-15) (Image)

Cat. $1675, Est.US$500

1930 65c-$2.60 Zeppelin, set of three used on flown card and two covers, some minor toning, mostly fine-v.f. (Cat No. C13-15) (Image)

Est.US$400

1930 $2.60 blue, left sheet margin Plate No. single, used on Washington, D.C. April 19, 1930 FDC flown via Graf Zeppelin to Friedrichshafen and back to Lakehurst, v.f., cat. $1000 (Cat No. C15) (Image)

Cat. $1000, Est.US$500

1933 50c green, bottom Plate No. 21177 block of six, n.h., fine-v.f. (Cat No. C18) (Image)

Est.US$250