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research
A detailed historical investigation into the origins and meaning of Unicode character U+237C (⍼), tracing its roots to H. Berthold AG's 1950 symbol catalogue where it was named 'Azimuth' or 'direction angle', with analysis of its visual design representing how a sextant measures azimuth.
U+237C
Jonathan Chan
Moyogo
H. Berthold AG
Wikipedia
Unicode