Both stamps are of the same perforation. The only question is whether they are double-line USPS watermark for #331, or single-line USPS watermark for #374.
This is one of the easyer ones of the washingtons From the scan they are not 357 blush paper or 331b china clay so as khj said they are 331 double line or 374 single line watermark I don't know why but I think there is one of each, the precancel a 331 and the other a 374, let me know if I'm right there is no way of knowing without the water mark but I feel lucky lol
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Stamp Community assumes no liability for errors. Copyright 2005 - 2026 Stamp Community Family - All rights reserved worldwide. Use of any images or content on this website without prior written permission of Stamp Community or the original lender is strictly prohibited. Privacy Policy / Terms of UseAdvertise Here
Posted 03/31/2011 5:32 pm
