Pittsburgh, Pennsylvania. Farmers and Mechanics Bank of Pittsburgh. $1, $5 & $10. Very Good to Very Fine.,We have three early notes from this Pittsburgh bank seen as PA-550 G4, UNL, and G24. The $1 is SENC but with a large portion of the left end absent and a tape repair on the back. The unlisted $5 is a contemporary counterfeit and has some minor edge wear. The $10 was once mounted but is sharply printed with just moderate circulation.