Cap Badge - 4th Royal Irish Dragoon Guards This badge was sold by Jim Purdy for $30.00 on e-Bay in the Spring/Summer of 2017. This badge was deemed irrelevant to the museum. The money was used to purchase relevant badges for the collection. The 4th Royal Irish Dragoon Guards was a cavalry regiment in the British Army, first raised in 1685. It saw service for three centuries, before being amalgamated into the 4th/7th Dragoon Guards in 1922. The regiment was first raised as the Earl of Arran's Regiment of Cuirassiers in 1685, by the regimenting of various independent troops, and ranked as the 6th Regiment of Horse. In 1691 it was re-ranked as the 5th Horse, and in 1746 transferred to the Irish regiment establishment where it was the ranked 1st Horse. It returned to the British establishment in 1788, as the 4th (Royal Irish) Dragoon Guards. In 1921, it was retitled the 4th Royal Irish Dragoon Guards and in 1922 was amalgamated with 7th Dragoon Guards (Princess Royal's), to form the 4th/7th Dragoon Guards.