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Wye Level
Catalogue number:
PH*336601
Inscriptions:
"STACKPOLE & BROTHER, NEW YORK 1490"
Dimensions:
telescope 15.5 inches long
Discussion:
Stackpole & Brother made this level for the United States Naval Observatory. It probably dates from the early 1870s, when Stackpole was making various instruments for the upcoming transit of Venus.
Further Information:
Level
Stackpole
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