The Billings & Spencer Adjustable Bicycle Spanner Wrench, patented in 1879, was a versatile tool designed for maintaining bicycles. Its adjustable jaw mechanism allowed it to fit various nut and bolt sizes, ensuring efficient repairs. This innovation was crucial during the bicycle boom of the late 19th century, reflecting the era's focus on technological advancements and industrial progress.
Marked signed with "1943 richards sheffield"
