Hello all. Could use some info on this cover from Fremont Ohio, September 7, 1940, which is the first day Scott #898 was issued. However, I have been unable to find any first day covers for this stamp that do not originate from Albuquerque New Mexico. Wondering why? Also the time is rather odd - 4am. My questions:
When they issued first day covers for this stamp, were they limited to Albuquerque New Mexico? If anyone knows.
What is the best resource (book, etc.) to find out information on how stamps were rolled out?
Is 4am the most likely earliest use of this stamp?