Recherche dans la collection - Plan & section of the upper and lower batteries, laid out and begun building 5th March 1771, for protecting the harbour of Pensacola. Likewise the plans, elevation and section of the blockhouses for protecting the rear of the batteries and for lodging the troops which are design'd to guard the batteries and work the guns. Wm. Brasier, Delt. T. Sower, Engineer. [architectural drawing]

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