Drawing, technical. Elevations and plans of quarry wagons used at Limerick Graving Dockworks, by W J Hall, 23 March 1868. Scale drawing, end and side elevations, top and bottom plan. Small printed label at bottom r., filled in by hand: Limerick 186, Stage 23a, Student William J Hall, Age 15 years, Occupation Engineers Apprentice. Master N A Brophy. Pen and ink, coloured grey, yellow and brown.