Straight Line Erasing Shield

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An erasing shield of thin metal is convenient in erasing desired shapes.

Source

Kenison, Ervin Mechanical Drawing (Chicago, IL: American School of Correspondence, 1916)

Downloads

TIFF (full resolution)

2400×1440, 267.4 KiB

Large GIF

1024×614, 24.8 KiB

Medium GIF

640×384, 13.2 KiB

Small GIF

320×192, 5.2 KiB