Source/Archive record SDR11943 - 1:10000 Title 1:10000 Author/Originator Ordnance Survey (OS) Date/Year 1975 Abstract/Summary OS 1:10000 1975. Loading documents & images Description Location Referenced Monuments (2) MDR4064 Calver Bridge, River Derwent (Monument) MDR4062 Hassop Hall, Hassop (Listed Building) Referenced Events (0) Referenced Designations (0) External Links (0) Record last edited Jun 9 2015 3:05PM