Allis-Chalmers HD-6 crawler
Chris Graham on 3rd February 2020
The Allis-Chalmers HD-6 crawler launched in 1955, with high expectations which, as Paul Tofield explains, were proved thoroughly justified.
Chris Graham on 3rd February 2020
The Allis-Chalmers HD-6 crawler launched in 1955, with high expectations which, as Paul Tofield explains, were proved thoroughly justified.
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