This is a 'blue negative' drawing; one of three sheets to be used to produce three colour separations for screen printing. The black areas would translate into black ink in this version, and would be combined with brown and black negative drawings (MP/DMT0066 and MP/DMT0067).
The location has been recorded as the Martello Tower as this sheet is a preliminary drawing for an information panel destined to be displayed at the site.
This is part of the Volume: PF/DMT Martello Tower Number 24, Dymchurch, Kent; within the Series: EHC01/022 English Heritage Plans and Measured Drawings; within the Collection: EHC01 English Heritage(EH):Archive
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