revenuecollector, Yeah what am I thinking

As for branching out, I'm already there! I'm going to collect revenue material relating to Philadelphia PA. Insurance and railroad cancels, documents, RN printed material, even CDV's.
Also the private die proprietary stamps.
I figure I'll be able to build a well rounded interesting collection, and learn alot about my city's history, all without those pesky blank spaces and I'll be able to do it according to my budget.
I'm thinking there'll be an near endless amount of material available, just have to hunt for it.
revcollector. I'll take your advice and study the paper. Always good to know what to expect as far as condition goes for the different issues.