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SurveyHistory · Surveying History

Group Information

  • Members: 136
  • Category: By Subject
  • Founded: Feb 21, 2005
  • Language: English
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Description

This group is for the general discussion of the history of the science of surveying. All periods are on the table, with particular emphasis on 18th & 19th Century surveying. Topics include instruments and makers, surveyors, instruments, techniques, maps, and more.

Messages are unmoderated, but individuals seeking to be added to the list must be approved. We hope that this will help reduce spam and unwanted messages. To help protect you from viruses, files are stripped from messages before being distributed to the list members. If you wish to share a file with the group, please post it in the "files" or "photos" section.

Photo: Mr. Dale Loberger, Civilian Surveyor

Most Recent Messages

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Re: User manual question
Turns out the bottom eyepiece is an optical plummet as some suggested. If anyone figures out the the top item, I'd appreciate it. Thanks for the help so far.
Posted - Thu Nov 8, 2007 3:47 pm
ntxcousin
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Re: User manual question
The top arrow points at what I think is a hole for electrical lighting. It will either illuminate the scales or the cross hairs or both. The eyepiece... I
Posted - Wed Nov 7, 2007 10:10 pm
Nicoląs de Hilster
ndehilster
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Re: User manual question
I posted a picture of the Theodolite in the Photos section with two red arrows showing the parts I'm interested in learning about. The bottom arrow is the
Posted - Wed Nov 7, 2007 9:07 pm
ntxcousin
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Re: User manual question
... It looks to me that it is the optical plummet. When yoy mount it on a tripod you will see the ground through it. It serves the same purpose as a normal
Posted - Wed Nov 7, 2007 8:32 pm
Nicoląs de Hilster
ndehilster
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Re: User manual question
I've got a picture at: http://www.iowasurveyor.com/junk/topcon-arrow.JPG I drew an arrow to what I think you may be asking about. If it's not, then sorry. I
Posted - Wed Nov 7, 2007 7:59 pm
Dan
lv2srvy
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2007 4 10 6 6 9 1 2 3 8
2006 1 5 29 5 1 6 3 6 1 1
2005 33 24 18 21 7 10 1 7 11 2
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