Here are the details of maps for Gravesend:
This highly detailed and early OS map covers the centre and east of Gravesend. Coverage stretches from the railway station eastward to the Ship & Lobster pub and West Court, and from the river southward to Windmill Hill and West Hill Villa. Features include the town centre, with its closely packed houses; Terrace Gardens and Royal Terrace Pier; Town Pier, Milton Barracks, Cumberland House, Trinity church, Christ Church, Bronte Villas, Old Windmill and nearby maze, Tivoli House, East Milton, Denton Court, St Mary's church in ruins, Denton Marshes, railway, Thames & Medway Canal, Albion Baths, Denton Windmill. A list of private residents from an 1874 directory is on the reverse. The map is a splendid portrait of Gravesend when it was a major tourist town.
The map links up with 10.06 Northfleet to the west; also with Essex Sheet 89.01 Tilbury Riverside to the north.
You might find this Index Map useful.