1918, 6c ORANGE AIR POST TOP ARROW & PLAET 5155 BLOCK OF SIX MINT, #C1, four stamps h.r., two never hinged, fine-very fine, cat. $700.00 (Image)

$200

1919, 16c GREEN AIR POST TOP ARROW & PLATE #8900 BLOCK OF SIX MINT NEVER HINGED, #C2, fresh and well-centered, very fine, cat. $1,350.00 (Image)

$500

1918, 24c CARMINE ROSE & BLUE TOP ARROW, DOUBLE PLATE NOS 8493/8492 & DOUBLE "TOP" BLOCK OF 12 MINT, #C3, previously hinged, natural gum bends, fine-very fine, cat. $1,250.00 (Image)

$400

1918, 24c CARMINE ROSE & BLUE AIR POST TOP ARROW PLATE #8492 BLOCK OF SIX MINT, #C3, hinged in selvage, stamps never hinged, fine-very fine, cat. $750.00 (Image)

$250

1933, 50c CHICAGO ZEPPELIN TOP PLATE #21171 BLOCK OF SIX MINT NEVER HINGED, #C18, slight natural gum bends, fine-very fine, cat. $600.00 (Image)

$250