I am trying to complete a set from one national bank set. I chose the First National Bank of Pittsburgh (Ch #252) because I originally bought an ungraded 1902 $5 Plain Back. It graded 35 EPQ and the signature of the bank president Lawrence Saunders is a wonderful signature. Also, this is a common bank with many notes so I thought the chances of getting most of the denominations would be better. It's not as easy as I thought. I rarely see the large denomination notes for sale. If anyone can help, I am BUYING CH #252's. Notice the the cashier was C.C. Taylor on the large notes and is also the same cashier on the small Type 1 notes! C.C must have worked at the bank as a cashier for many years. Anyone else trying to do a collection like this??