http://groups.yahoo.com/group/SurveyHistory/ Surveying History Wed, 17 Jun 2009 18:47:13 GMT alidade2 http://groups.yahoo.com/group/SurveyHistory/message/253 http://groups.yahoo.com/group/SurveyHistory/message/253 ... Cherie, I have done similar research for County Surveyor's in my area. I am still researching and always looking. One thing that you might try since County Wed, 17 Jun 2009 15:28:52 GMT Cherie Crookston http://groups.yahoo.com/group/SurveyHistory/message/252 http://groups.yahoo.com/group/SurveyHistory/message/252 I am looking for photos of early surveyor's of southern Oregon, especially of Josephine County. I am working on trying to get pictures of all the County Wed, 18 Feb 2009 17:45:31 GMT W. Scott Smith http://groups.yahoo.com/group/SurveyHistory/message/251 http://groups.yahoo.com/group/SurveyHistory/message/251 I have listed today, with Mr. Edward Bay, a reproduction brass half Gunter's Chain made by Mr. Milton Denny. Reproduction Andrew Ellicott style (circa 1790) Tue, 09 Dec 2008 18:09:10 GMT alidade2 http://groups.yahoo.com/group/SurveyHistory/message/250 http://groups.yahoo.com/group/SurveyHistory/message/250 ... (the ... like ... I'm ... wooden, ... Try this web site: http://www.amesinstrumentcompany.com/other.html They offer chains as well as chaining pins, Mon, 08 Dec 2008 22:33:55 GMT AEP http://groups.yahoo.com/group/SurveyHistory/message/249 http://groups.yahoo.com/group/SurveyHistory/message/249 ... I have an original metal (iron) chain winder datable to the later part of the 1700s. I also use matal stakes (wrought iron) for my interpretation (c1790.) Mon, 08 Dec 2008 21:29:15 GMT T L Nesbitt http://groups.yahoo.com/group/SurveyHistory/message/248 http://groups.yahoo.com/group/SurveyHistory/message/248 Scott I recall seeing in a chapter from a late 17th or early 18th century engineering book, a description of what we call surveying stakes or pins today. In Mon, 08 Dec 2008 21:16:56 GMT Scott McMahon http://groups.yahoo.com/group/SurveyHistory/message/247 http://groups.yahoo.com/group/SurveyHistory/message/247 List, In looking at portraying an 1820's-30's surveying party, would you(the list) suggest using wooden chaining stakes or petal pins? I would like to err on Tue, 04 Nov 2008 16:31:00 GMT W. Scott Smith http://groups.yahoo.com/group/SurveyHistory/message/246 http://groups.yahoo.com/group/SurveyHistory/message/246 *From Williamsburg to Wills's Creek: The Fry-Jefferson Map of Virginia* *Library of Virginia, Richmond* *August 18, 2008 - May 23, 2009* Mon, 18 Aug 2008 12:53:42 GMT W. Scott Smith http://groups.yahoo.com/group/SurveyHistory/message/245 http://groups.yahoo.com/group/SurveyHistory/message/245 From the VA-HIST Group: The Library of Virginia is pleased to announce the opening of a major exhibition, "From Williamsburg to Wills's Creek: The Thu, 08 Nov 2007 15:47:31 GMT ntxcousin http://groups.yahoo.com/group/SurveyHistory/message/241 http://groups.yahoo.com/group/SurveyHistory/message/241 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. Wed, 07 Nov 2007 22:10:28 GMT Nicolàs de Hilster http://groups.yahoo.com/group/SurveyHistory/message/240 http://groups.yahoo.com/group/SurveyHistory/message/240 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 Wed, 07 Nov 2007 21:07:28 GMT ntxcousin http://groups.yahoo.com/group/SurveyHistory/message/239 http://groups.yahoo.com/group/SurveyHistory/message/239 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 Wed, 07 Nov 2007 20:32:28 GMT Nicolàs de Hilster http://groups.yahoo.com/group/SurveyHistory/message/238 http://groups.yahoo.com/group/SurveyHistory/message/238 ... 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 Wed, 07 Nov 2007 19:59:19 GMT Dan http://groups.yahoo.com/group/SurveyHistory/message/237 http://groups.yahoo.com/group/SurveyHistory/message/237 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 Wed, 07 Nov 2007 19:44:58 GMT Nicolàs de Hilster http://groups.yahoo.com/group/SurveyHistory/message/236 http://groups.yahoo.com/group/SurveyHistory/message/236 ... Could you send me a picture of it or post one here? Nicolàs