Isometric of a cube with 30°.
Ervin Kenison, S. B. and Edward B. Waite, S. B. Mechanical Drawing (Chicago: American School Of Correspondence, 1917) Part III: Page 115
TIFF (full resolution)
2229×2400, 217.7 KiB
Large GIF
951×1024, 30.3 KiB
Medium GIF
594×640, 17.1 KiB
Small GIF
297×320, 7.7 KiB