English: The upper tool is a Warren and Brown tensioning wrench, purchased by the author around 1965, at which time W&B was a subsidiary of Repco Ltd., and mostly used by him or his father for tightening head bolts on various engines. I had it checked professionally around 2000, and was true to the graduations.
The lower tool, made for a much lower range by the same company (now independent), was purchased by a close relative in 2022, specifically for adjusting automatic transmissions on classic vehicles.
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