Scotland's first polymer bank note has been nominated for an international award.

Clydesdale Bank's durable £5 note, issued last March, is in the running to be named "bank note of the year".

Around two million of the notes, featuring a portrait of Scots engineer William Arrol, are currently in circulation.

They were the first in the UK to be made entirely from polymer - a form of plastic - meaning they are less likely to tear and become dirty than paper ones.

The UK will compete with bank notes from Singapore, New Zealand and China for the title, awarded by the International Bank Note Society.

Clydesdale Bank chief executive David Duffy said: "The note has proved popular with the public and businesses since its launch thanks to its iconic graphics and durable design.

"We take our responsibility as an issuer of bank notes seriously and are excited to be leading the way in innovation."

The notes were issued to commemorate the 125th anniversary of the opening of the Forth Bridge, pictured on the reverse side.

Clydesdale Bank announced earlier this year that a new polymer £10 note featuring poet Robert Burns would be produced for circulation in 2017.