Plan of the ground walls of Blackness Castle.
cartographic

[17--?]
In top left hand corner: in diamond-shaped box, title handwritten in ink, with library shelfmark written in ink to the left.
Below title: written in ink, "References to the Plan" with list of code letters, and names of features on plan to which they refer, and below, "B.O" with upwards arrow, stamped in red.
At bottom of sheet: scale bar graded (incorrectly) 150-140-120-110-100-90-80-70-60-50-40-30-20-10-[0]-[10].
Shows Blackness Castle, Scotland.
Board of Ordnance Plans,
Blackness Castle (Scotland)
Maps, Military