Piers note: No. 274. Fort Clarence: Gun Pit for Moncrieff Gun (?). It is shown under construction in No. 273. Fort Clarence: Completed Gun Pit or Emplacement for 64-pr. Moncrieff Counterweight or Disappearing Gun, being the same one shown in No. 273 and to left in No. 275; 1880 (?). Looking Southeast (?) from interior of fort.
Date.: ca. 1880
Reference: Royal Engineers Nova Scotia Archives number 6832 (Piers 274)
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