Chicago : Engineering and Contracting Pub. Co. · leaf 164
Special Device for Handling Dirt Cans.(Can About to Be Dumped.) Special Device for Handling Dirt Cans.(Can About to Be Attached to Hoist.) Enough rock was crushed for one mile ofroad, or about 2,000 cu. yds. Approximatenumber of days of convict labor performedwas about 1,120, for which the state…
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Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.