Archif2022-05-06_2829TeitlDD2022_011_003 - General Digital Donations CollectionLefelItemDisgrifiadDigital photograph showing Markham colliery, dated 1985.Cyfrwng1 jpeg, 2.78 MB.Delweddauy
Archif6500306TeitlDI2018_008_101 - RCAHMW Digitised RecordsLefelItemDisgrifiadDigital copy of an acetate negative showing demarcation line between Oakdale and Markham Collieries, from the John Cornwell Collection.CyfrwngPhoto.Delweddauy
Archif6206370TeitlAdditional InformationLefelItemDisgrifiad12 b/w photographs showing aspects of Markham Colliery, Bedwellty, taken c. 1969-1975, by British Coal, John Cornwall and Hylton Warner & Co Ltd of Cardiff.CyfrwngPhoto.Delweddaun
