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    Maenofferen Slate Mine, Blaenau Ffestiniog (Maen-Offeren; Maen y Fferem; Maen Offeren)

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    Archive NumberTitleLevelDescriptionMediumImagesArchive Number6537110Title73_082_0499 - Ordnance Survey Vertical Aerial Photography CollectionLevelItemDescriptionBlack and white aerial photograph of Maen Offeren Slate Mine, taken by the Ordnance Survey on 17th April 1973 at an altitude of 7,500 feet. Grid reference SH7046. Print enlargement (c. 20") taken from 9" film roll.MediumPhoto.ImagesnArchive Number6537109Title73_082_0526 - Ordnance Survey Vertical Aerial Photography CollectionLevelItemDescriptionBlack and white aerial photograph of Maen Offeren Slate Mine, taken by the Ordnance Survey on 17th April 1973 at an altitude of 7,500 feet. Grid reference SH7046. Print enlargement (c. 20") taken from 9" film roll.MediumPhoto.ImagesnArchive Number6537108Title73_082_0527 - Ordnance Survey Vertical Aerial Photography CollectionLevelItemDescriptionBlack and white aerial photograph of Maen Offeren Slate Mine, taken by the Ordnance Survey on 17th April 1973 at an altitude of 7,500 feet. Grid reference SH7046. Print enlargement (c. 20") taken from 9" film roll.MediumPhoto.ImagesnArchive Number6145692Title945096_48 - RCAHMW Black and White Oblique Aerial PhotographsLevelItemDescriptionRCAHMW Black and white oblique aerial photograph of Maen-offeren Slate Quarry, Ffestiniog, taken by C.R. Musson, 17/04/94MediumPhoto.ImagesnArchive Number6145691Title94_CS_0722 - RCAHMW Colour Oblique Aerial PhotographsLevelItemDescriptionRCAHMW colour slide oblique aerial photograph of Maen-offeren Slate Quarry, Ffestiniog, taken by C.R. Musson, 17/04/94MediumPhoto.ImagesnArchive NumberAP2024_065TitleAP2024_065LevelBatchDescriptionAerial photographic survey of Maen Offeren Slate Mine, Blaenau Ffestiniog. Conducted by Toby Driver of RCAHMW, 20 April 2018.Medium1 .tif file (104 MB). Photographic.ImagesnArchive NumberAP2024_065_001TitleAP2024_065_001LevelItemDescriptionMaen-offeren Slate Quarry, wide view from north-east. Oblique aerial photograph taken during the Royal Commission’s programme of archaeological aerial reconnaissance by Toby Driver on 20 April 2018.Medium1 .tif file. PhotographicImagesyArchive Number6360328TitleAP_2005_2953 - RCAHMW Colour Oblique Digital Aerial PhotographsLevelItemDescriptionRCAHMW colour oblique aerial photograph of Maen-Offeren Slate Quarry, Blaenau Ffestiniog, viewed from the west. Taken on 21 November 2005 by Toby DriverMediumPhoto.ImagesyArchive Number6360327TitleAP_2005_2954 - RCAHMW Colour Oblique Digital Aerial PhotographsLevelItemDescriptionRCAHMW colour oblique aerial photograph of Maen-Offeren Slate Quarry, Blaenau Ffestiniog, viewed from the west. Taken on 21 November 2005 by Toby DriverMediumPhoto.ImagesyArchive Number6360326TitleAP_2005_2955 - RCAHMW Colour Oblique Digital Aerial PhotographsLevelItemDescriptionRCAHMW colour oblique aerial photograph of Maen-Offeren Slate Quarry, Blaenau Ffestiniog, viewed from the west. Taken on 21 November 2005 by Toby DriverMediumPhoto.Imagesy