5¢
Violet
Printing Method: Flat Plate
Printer: Bureau of Engraving and Printing
Subject: A pilot's wing insignia
Number issued: 97,641,200
Perforations: 11
Watermark: Unwatermarked
Scott #: C12
Issued: February 10, 1930
Used
20¢
No postmark with gum (MH)
60¢-$1
Full perfect gum, no postmark
no trace of stamp hinge mark (MNH)
$1 - $1.60
#C12 was issued with the following plate #'s
19942-19949
20187-20190
20323
A first day cover postmarked February 10, 1930
A pilots badge for the Airmail Service
In an effort to increase the use of airmail the postage rate was halved from 10¢ to 5¢ per ounce. From this issue onwards only airmail stamps could be used on airmail, previously any current US postage stamp was accepted.
A complete pane of 50, there were four panes to a sheet of 200