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Re: Do you know this instrument ?
From: David Pike
Date: 2024 Oct 28, 08:38 -0700

Several people wrote "It's a stadimeter, a device to determine distance to an object of known height."
What's wrong with an ordinary sextant and the one in 60 rule? E.g. 100ft high, one degree = 6000ft away (ok 5730ft away). DaveP

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