'Speedwell': 3D and 2D early locomotives from Neath Abbey Ironworks Company Eitemau 2 items Math Casgliadau Uwchlwytho gan West Glamorgan Archive Service
3D model of 10 ½ inch locomotive 'Industry', Harfords, Davies & Company, Ebbw Vale, undated (1830s?) Math Eitemau Uwchlwytho gan West Glamorgan Archive Service
(Thomas) Prothero (Newport, Coal merchant): Speedwell, Plan and elevations. n.d., c.1829 Math Eitemau Uwchlwytho gan West Glamorgan Archive Service
