I admit, I am stumped.
In the Scott US Specialized Catalogue, #U1 through U10 have eight different basic design types. The six cent only has one design, so that's out of the equation here. However, the three and ten cents designs have five and two design types respectively.
Scott indicates a measurement in the design descriptions, such as "13mm wide at top", "15 1/2 mm wide at the top", etc.
How is this measurement taken? What does "at the top" refer to?
I have measured straight across from the top corners of the value label, and measured straight across from the top right to the top left of the word "THREE". I don't come up with any of the measurements stated in Scott. Do I have to curve my ruler to follow the curve of the label or the value?
Thanks in advance for your help.
PS - Vince, if you still have that postal stationary booklet, I could sure use it now!
re: ID Design Types of the United States Envelopes 1853-1855 Issue