Has anyone checked out this page of cover sales? There are a number of "local post" stamps/labels included, some of which I haven't heard of before (i.e. Bohemia Gold Mines Local Post, Rio Grande Navy Local Post, Chautaque Lake Local Post, etc.)
http://www.discountcoverstore.com/r...&searchtext=Seems like nice modern material at reasonable prices. For those not familiar with the web site, it is a new link through Jim Forte's Postal History Web Site.