1¢ - Green
Printing Method: FLAT PLATE
Subject: George Washington
Number issued: 55 stamps recorded
Perforations: 10 x 12
Watermark: Single line USPS wmk
Issued: December (?), 1914
$3,000 - $11,000
No postmark with gum (MH)
Full perfect gum, no postmark
no trace of stamp hinge mark (MNH)
Five post cards with #423D survive, all postmarked December 1914
The perf 10 wheels were introduced into the Bureau in December 1913. At some time, presumably 1914 (probably in December), these compound perf stamps were fed horizontally through the 10 gauge perforator and then, probably in error, fed vertically through the 12 gauge perforator.
At the time of writing there are 55 used stamps recorded. 41 of these have the Dayton, Ohio precancel, two have a Buffalo, New York precancel and the rest have a wavy line cancel
There are no recorded examples of unused stamps.
The watermark consists of single lined USPS letters. A stamp may show only part of a letter or letters