Royal Corps of Military Surveyors and Draftsmen

The Tower of London was home to the Board of Ordnance and the Royal Corps of Military Surveyors and Draftsmen.

Royal Corps of Military Surveyors and Draftsmen was a British military corps under the Board of Ordnance formally established in 1800 and disbanded in 1817.[1] It was one of the predecessors of the Ordnance Survey.[2]