Here are the details of maps for Blyth:

Northumberland Sheet 73.10 Blyth 1897 - published 1992; intro by Iain Watson. ISBN.978-0-85054-533-3 
This detailed map covers the town of Blyth, including the port. Most of the town is shown, including Crofton, Waterloo, Cowpen, Cowpen Quay and North Blyth. Features include the station, Market Place, staiths at North Blyth, NER New Blyth line along the Low Quay, Cowpen Colliery Mill Pit, Cowpen Colliery A Pit, Cowpen Colliery North Pit (disused) with railway, Blyth High Ferry, Crofton Mills, bottle works, East Pier, rope works. A list of private residents from an early directory is included.