The Duchess of Cornwall, who is president of the charity, marked the occasion by meeting long-term staff and volunteers from across the UK, before cutting a cake illustrating the charity’s global expansion since 1934.

The event was held at the Brooke's photographic exhibition at St-Martin-in-the-Fields where images taken by former champion jockey Richard Dunwoody MBE depict the charity's work in India, Pakistan, Guatemala and Egypt.

The Duchess viewed the images alongside the Brooke’s Chief Executive Petra Ingram and Richard and was presented with a framed Limited Edition print of Brick Kilns which was taken in Pakistan – one of the four countries The Duchess has visited to see the Brooke’s work since becoming President in 2006.

Petra thanked The Duchess for her contribution to the success of the Brooke, which reaches more working equines than any other organisation.

“It was wonderful to see our dedicated staff and volunteers recognised in this way. The Duchess was delighted to meet them to hear first-hand about the vital work they do to help working equines around the world. We are grateful for The Duchess’s interest and involvement in the Brooke’s work, and the support she continues to give us.

“It’s an exciting time as we expand to reach more working equines around the world, and we have our volunteers and staff to thank for that,” 

The Brooke’s aim is to reach two million working equines each year by 2016.

The launch today will be followed by a lunch at Clarence House in February, hosted by The Duchess, to mark the Brooke's 80th anniversary.