Nut and bolt from Bedford Place cast iron bridge Alloa, Clackmannanshire. Nut dimensions: 2.375 in square x 2 in. Bolt dimensions: 2.5 in x 1.375 in square with head 1.25 in. Used for securing cast iron members.
Descriptions of the Bedford Place bridge and waggonway can be found at http://canmore.org.uk/site/47236/alloa-bedford-place-waggonway-bridge and http://staff.stir.ac.uk/jeff.wotherspoon/sak/alloaww/alloaww.htm.