Invention and Engineering
The Dinorwic Alice Class is a class of eleven narrow-gauge 0-4-0ST steam locomotives built specifically for the Dinorwic quarry, Gwynedd. These locomotives were built by the Hunslet Engine Company between 1886 and 1904, and were designed and supplied specifically to work the many galleries of the quarry at Llanberis, North Wales.
British Rail Class 21 (NBL).
Aviation.
Text from Wikipedia; plate via Wikimedia Commons. Text CC BY-SA 4.0; plate freely licensed (see Commons). Source record. Images and catalogue data are reproduced from open-access collections.