Hi all
I've seen several 16th and early 17th century English dials where the latitude
has been marked, for example:
51G 30M
often with the G and M above their respective figures.
Can someone tell me, please, what the G stands for? The only angular G I know
is the grad, or 1/100th of a right angle. This is clearly not what is meant in
these cases, as 51D(egrees) 30M(minutes) is meant to represent London. Or did
grad mean something different in Tudor and Stuart times?
Regards,
John Davis
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