ORDNANCE SURVEY INTERMEDIATE SCALE MAPS

Roger Hellyer & Richard Oliver, 2022.

An exhaustive study of the 1:25,000 Second Series (Pathfinders) and its military predecessors. 438 pages and 32 pages of colour plates, hardback.

The authors are well-known for their exhaustive studies of Ordnance Survey map series, and this is the long-awaited sequel to that of the 1:25,000 First Series, published in 2003. It describes and lists in detail:

• The 2½-inch ‘Map of East Anglia’
• The 1:20,000 artillery training map family, GSGS 2748
• The military 1:25,000 of Great Britain and Ireland, GSGS 3906
• The 1:25,000 Second Series family:
• Pathfinders, Outdoor Leisure Maps, Explorers
• 1:20,000 and 1:25,000 maps of Ireland

438 pages (plus preliminaries) and 32 pages of colour plates
This book has been over twenty years in the making, and will be the definitive account.