Marines
Royal Marines, or the Marines were in certaint instances soldiers taken from various Regiments and served for either a certain amount of time or were utilised for specific engagements tasks.
The 2nd (Queens Royal) Regiment of foot was one such Regiment and the following website text explains.
http://www.queensroyalsurreys.org.uk/distinctions/distinctions.html.
The Naval Crown superscribed '1st June 1794'
This distinction recalls the part played by The Queen’s when acting
as Marines during the Battle of The Glorious 1st of June 1794. The Regiment
was embarked on board five ships of the Line - HMS Queen Charlotte (Admiral
Lord Howe’s flagship), HMS Russell, HMS Defence, HMS Royal George
and HMS Majestic. The Naval Crown was granted in recognition of the Regiment’s
gallant conduct and contribution to this victory. It is borne on the Regimental
Colour.
Marine Museum, Portsmith.