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P. 1. Walltown Crags. Northumberland. Stretch of Roman Wall. Ministry of Public Buildings and Works. Crown. George Pulman
Northumberland. Walltown Crags. A Stretch of Roman Wall. Hindson Print Group. Crown
Northumberland. Walltown Crags. A Stretch of Roman Wall. Ministry of Public Building and Works. Mardon. Crown
Northumberland. Walltown Crags. A Stretch of Roman Wall. Crown. W. S. Cowell
Northumberland. Walltown Crags. A Stretch of Roman Wall. Ministry of Public Building and Works. George Pulman. Crown
Northumberland. Walltown Crags. A Stretch of Roman Wall. Ministry of Public Building and Works. Crown. George Pulman
Northumberland. Walltown Crags. A Stretch of Roman Wall. W. S. Cowell. Crown