PF/MCH Milton Chantry, Commercial Place, Gravesend, Kent Fifty-nine sheets, dating from 1909 to 1998. The earliest sheets are Royal Engineers' drawings of the fort from 1909, and plans relating to the conversion of the chapel to a museum in the mid-1920s. There are a few undated sheets, probably from the 1950s and 1960s, and a copy of a 1972 deed plan, then a series of survey and electrical services drawings from 1973 to 1976. One sheet from around 1980 shows proposed road signage for the chapel, and there are more electrical and security drawings which were made between 1984 and 1987. Several more survey drawings dating from 1993 and 1994 are also included, along with some rectified photography from 1995 and block plans from 1998.