The cover focuses on one of the best-known pioneers featured in the stamp issue, James Watt. His genius in combining the power of steam with stationary and mobile machines provided the driving force of the Industiral Revolution. The striking cover image shows the young James watching a boiling kettle and beginning to think of a way to harness its power and is framed by a fine 22ct. gold blocked design. The cover bears a pictorial Birmingham handstamp marking where both Matthew Boulton and James Watt lived and worked. Numbered Limited Edition of 500.