Abbreviation
O.S.
Definition
(Maps and publications of the) Ordnance Survey.
Source Type
series
Total occurrences: 1802
Location
All Counties 1802
Cambridgeshire and the Isle of Ely 96
Durham 1
Essex 10
Hertfordshire 15
Lincolnshire 2
Middlesex 17
Northamptonshire 20
Oxfordshire 53
Shropshire 433
Surrey 57
Sussex 9
Warwickshire 52
Wiltshire 35
Yorkshire, West Riding 1002