Triangle Scales
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The triangle scale has six surfaces for different graduations, and the scales are arranged so that the drawings may be made in any proportion to the actual size.
Galleries
Mechanical Drawing ToolsSource
Kenison, Ervin Mechanical Drawing (Chicago, IL: American School of Correspondence, 1916)
Downloads
2400×434, 336.1 KiB
1024×185, 42.1 KiB
640×115, 22.1 KiB
320×57, 8.5 KiB