The building was officially opened on 27 March 1934 by the Earl of Bessborough, the Governor-General of Canada.
Earl of Bessborough | Frederick Ponsonby, 6th Earl of Bessborough | Vere Ponsonby, 9th Earl of Bessborough | Frederick Ponsonby, 10th Earl of Bessborough | armoury | Arthur Ponsonby, 11th Earl of Bessborough | William Ponsonby, 2nd Earl of Bessborough | London Armoury Company | Kremlin Armoury | Denison Armoury | Armoury, Innsbruck | 6th Earl of Bessborough | 11th Earl of Bessborough |