Bank of Scotland Polymer £20 Notes Presentation Pack. Entitled Paper to Polymer – a tale of two bridges. The pack is number 0365 of a strict numbered limited edition of 1,000. It features notes depicting the Forth Bridge and the Queensferry Crossing. It was issued in 2020 and the notes are dated 1 June 2019. The notes are numbered AA000765 (Forth Bridge) and QC000765 (Queensferry Crossing).