Ref NoXNCB/7
Acc No2008/14
TitleBoreholes
DescriptionSections of strata for Usworth Colliery giving name, depth 1882-1889 with information on shafts, seam section, Ms illustrations, sections of boreholes with depth bored for each stratum and total, with undated copy draft agreement between Diamond Rock Boring Company Limited and Usworth Colliery owners, copy correspondence about Wearmouth, Boldon, Felling, Wardley, Usworth, Barmston, North Biddick [early 20th century]; loose, section of shaft at Muckleridge scale 10feet:1 inch
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