Plans for Derwent Valley Water Board & Messrs. F. H. Drabble & Sons Ltd Item number not apparent, but sub-numbered /a-m. Plans for Derwent Valley Water Board & Messrs. F. H.Drabble & Sons Ltd. - relating to water pipe line, drainage, culverts & flooding areas in Lumsdale (near Matlock), the Bentley Brook & Drabbles premises. Most of these are dated 1932 & the rest are probably of about the same date. a. Plan of Bentley Brook & Tansley Wood Mills (Drabbles). Plan No.1 based on Ordnance Survey 1 to 1250. b. Plan of culvert relating to Plan a. c. (No number) Large scale plan of the properties of Derwent Water Board & Messrs. Drabble - relating to the Bentley Brook & Tansley Wood Mills. Scale 20 feet to 1 inch. No date, but about 1932. d. & e. (No numbers) Blue Prints from Ordnance Survey Drainage areas in Bentley Brook & Tansley. No date but about 1932. f-m. (k & l not there). 6 Blueprints relating to culverts, outlets & flow of the Bentley Brook, 1932. 20th cent