An exhibition dedicated to the life, work and legacy of Scottish engineer and inventor James Watt is now open at the Engine Shed in Stirling (www.engineshed.scot) until 23 August.

It celebrates his invention of the separate-condenser steam engine in 1776 and features historic artefacts, including a replica of William Murdoch’s locomotive that is on pubic display for the first time since 2000.

The exhibition also showcases two examples of Cartwheel pennies and a sign from Kinneil House, where James Watt developed his prototype steam engine.

The George III Cartwheel penny (dated 1797), was the first copper penny to be circulated in Britain and the first coin in England to be minted on a steam-powered press, developed by James Watt in partnership with Matthew Boulton.

The sign is a painted copper alloy plaque from an engine cylinder at Kinneil House.

The Engine Shed is run by Historic Environment Scotland (HES). Mark Watson, deputy head of industrial heritage at HES, said: ‘This exhibition is the perfect way to celebrate the work of James Watt, shining a spotlight on the impact of his work.

“The miniature locomotive gives an insight into the earliest experimental road vehicles, and we’re delighted to bring it back into public view for the first time in 19 years.”