Hi,
Short answer: No.
Long answer: I do not know what catalog or website you are using to identify this as a "type C", I am unfamiliar with it, but the most common catalog used in the U.S. is Scott, so I will use that numbering terminology.
You are correct to notice a difference in the rate of perforations on your stamp. However Scott, like all catalogs, rounds the rate, often to the nearest half or quarter, It is not exactly 10 or 10.5 or 11, but only close to these.
To further illustrate, I have cropped your stamp and placed it next to itself at 90 degrees rotation. The perforation holes align at the top and are about 1/2 a perforation "off" at the bottom. These stamps are about 2cm tall, matchng the width the perforation gauge, thus the only stamp of this design with perforations differing 0.5, would make this a Scott 634, which is perf 11 x 10.5, and a very common variety.
If you want a quick confirmation of the 11 x 10.5 rate, compare it against any of the lower values of the U.S.'s 1938 Presidential series stamps.
Posted 04/30/2024 06:44 am
