Most likely J1, J8 is the 1879 special printing. These stamps (all of the Special Printings) were only available through the Office of the 3rd Assistant Postmaster General in Washington, DC. Those sold through the mail were required to enclose amount of purchase, return postage, and the 10˘ registry fee.
The following link is the Willaim Mooz' May 1996 USPCS Chronicle article
The Special Printing of the 1879 Postage Due Stamps http://chronicle.uspcs.org/PDF/Chro...170/6248.pdf
Posted 11/11/2017 8:58 pm
