The show was crowded and about 1/2 stamps and 1/2 coins.
Very few US covers though. One guy had a lot of nice European covers.
A satcheleer (actually a briefcase dealer) overheard me asking for covers and I looked over his stock sitting together in the hotel lobby. I bought this 1868 Louisville, Ky advertising cover with a 30c Franklin stamp addressed to Frankfurt Germany. There are several interesting markings on it including "New York PKT 7 Paid", "AACHEN 124 FRANCO" and "per Prussian closed mail."


