The sheet has coloured annotations and is marked with a red encircled 'L'.
This is part of the Job: PF/PRU/012 Sketch plans and notes for Prudhoe Castle's new entrance gates; within the Volume: PF/PRU Prudhoe Castle, Northumberland; within the Series: EHC01/022 English Heritage Plans and Measured Drawings; within the Collection: EHC01 English Heritage(EH):Archive
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Creator of Archive: English Heritage