Article · Wikipedia archive · Last revised Jun 17, 2026

Variscale

A variscale is variable length mechanical scale (ruler) designed to directly measure latitude and longitude on USGS maps.

Last revised
Jun 17, 2026
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≈ 1 min
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Wikipedia ↗

A variscale is variable length mechanical scale (ruler) designed to directly measure latitude and longitude on USGS maps.1

References

References

  1. Roos, M., 1967. Variscale stereo point marking instrument, Photogrammetric Engineering, 33(11):1260-64.
External links