Rob, have you tried Jim Forte's website
I visited Jim's website last night. Unfortunately, nothing for me. I am looking for pre-Civil War material with stamps adhered. Early stamped postal history from Allegany County, MD is not easy to find. That is what makes the hunt more fun. Hopefully, everybody reading this will keep me in mind for this type of material. Although I am probably not the only person seeking this out, I can't imagine I have too many competitors.....BTW-Where are the #1 covers on Cumberland, MD listed on the #1 census? I have been looking for one for over 10 years, but to no avail.