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- Monkey Wrench, 1900-1925 - The adjustable monkey wrench, an American innovation, is an improvement on an earlier 18th century English wrench. The monkey wrench was popular in the 19th and early 20th centuries. By the mid-20th century, it had been mostly replaced by the lighter adjustable "Crescent" wrench.

- 1900-1925
- Collections - Artifact
Monkey Wrench, 1900-1925
The adjustable monkey wrench, an American innovation, is an improvement on an earlier 18th century English wrench. The monkey wrench was popular in the 19th and early 20th centuries. By the mid-20th century, it had been mostly replaced by the lighter adjustable "Crescent" wrench.