These polymer £5 notes were issued by the Clydesdale Bank in 2016 (P235b) The previous year the Forth Railway Bridge which is illustrated on the back was inscribed as a World Heritage Site. The front has a portrait of Sir William Arrol, the engineer responsible for the construction of the bridge which was finished in 1890. The first notes the bank issued in 2016 had the prefix W/HS (World Heritage Site).
Choice examples of the Portrait £5 issued when J S Fforde was Chief Cashier (B312) The front features a youthful portrait of Queen Elizabeth II and a young seated Britannia on the back Choice GEF. Limited availability.