See Leter Brookman's United States Postage Stamps of the 19th Century The 2 volume first edition is available free on the US Philatelic Classics Society Webpage here: https://d2jf3tgwe889fp.cloudfront.n...k-Marked.pdf
See book page 72 (page 78 of the .pdf file). The entire work is highly recommended reading.
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