#650 5ยข Aeronautics Conference 1928
See below for details
Basic Info
5¢ Blue, deep blue
Printing Method: Flat Plate
Subject: Globe and Airplane
Number issued: 10,319,700
Perforations: 11
Watermark: Unwatermarked
Scott #: 650
Issued: December 12th, 1928
Value
Used
25¢ - 50¢
No postmark with gum (MH)
50¢ - 75¢
Full perfect gum, no postmark
no trace of stamp hinge mark (MNH)
50¢ - $2
Plate #'s
#650 was issued with the following plate #'s
Number only
19658-61
First Day Cover
A first day issue of #650, dated December 12th, 1928
The Prairie Dog Wing Walker
Known as the Prairie Dog flaw, after its shape, this can be found on stamp number 50 of the lower left pane. The stamp will have a straight edge on the right.
The Plane
The Spirit of St Louis
Charles Lindbergh's plane, the Spirit of St Louis, was a custom designed plane. The plane featured on #650 was meant to be similar.
A full pane
A pane of 50 of #650, there were four panes to a sheet of 200
Essays and Proofs
650 E
A photo essay on card
650 E
650 P1
Large die proof on India, die sunk on card
650 P1
1926-30 Commemoratives
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