Ridley Park, Pennsylvania. $10 1902 Plain Back. Fr. 632. The Ridley Park NB. Charter #10847. PMG Fine 12.Just three large size examples are known on this rare Delaware County bank. According to Track & Price, all grade Fine to Very Fine. This is just the third auction appearance for any large example, and the first for this serial number. The bank had a rather successful career opening in 1916 and issuing until the end of the National Banking era in 1935. A mere $1,320 remained outstanding as it is no surprise that only three notes are reported to the census.