My apologies for any offense to other members and for my limited (more than I thought) knowledge of the use of the term "perspective" as applied to some forms...
It's only a proportional divider. Only had two good uses: 1) paperweight. I always preferred dividing my planes, solids, and circles the old fashion way of...
I've often tried to acquire one of that design. It allows sharpening of the points if damaged without affecting the proportional settings. Speaking of...
For anyone who may be in the Washington DC area this weekend is the the conclusion of the Tools of the Imagination show at the National Building Museum. A...
I looked at both of them. The beam compass is pretty standard issue isn't it? But the proportional dividers are pretty unique. ... but ... deemed ... making ...
TJ, Thanks for some sensability, Not sure what caused the problem, But I started to ignore it as soon as the font size increased. Thanks for looking at the...
I have just uploaded a photo of a Cooke Troughton & Simms hook ended proportional divider in my collection, which I acquired earlier this year at the Antique...
I looked it up and "DRP" stands for Deutsche Reichspatent = German Imperial Patent. This would be from before the postwar establishment of the BRD in the West...
My research came up with the same bit of info, but I think it is pre WW2 only because 1) 1945-49 items for export from Germany were marked U.S. Zone and 2)...
My feeling is patents will give you an era, not a specific year except for particular marking changes. DRP may be pre-War because the phrase Reich is there...
I think it's a great idea but the volume of material is enormous. I have a collection of catalogues from both British and US companies such as W F Stanley, A...
I'm trying out Yahoo's new RTF based editor. so we'll see how it works First of all welcome to our new member mrmixer2006@... Second, I certainly see...
Well, pretty good but two items. The point size of the typeface was listed as 5.5 point? and the editer could not handle United States as the first two...
Check out this very similar set on eBay: http://tinyurl.com/8nmct Riefler was a leading, if not the leading, German instrument maker. Theo. Alteneder...
I was watching that set but missed bidding on it.From what Ive seen sets sell for previously the winner got a good deal at $57 ... maker. Theo. Alteneder...
The set shown on ebay, from the style of case, cloth in the lid, etc, dated from the 1950s (like my 1955 A12 set). The pattern was made for nearly 100 years...
Yup, I own a few. Could never tell if they actually made the instruments or simply branded someone else's work. Generally speaking lower grade gear but they...
TJ Thanks for the info. Another query to you and the group in general..does any one have iinfo on Birk.. I just picked up a beam compass..I guess it would be...
Does the beam have a triangular groove on the top surface or is the bottom of the beam triangular forming a cross section like a monopoly house upside down? Is...
Correction, Riefler should have been E.O. Richter in my last post. I have placed a PDF showing 4 pentagonal cross-section beam compasses in the DVT Photos...
Actually, Tower was a Sears brand according to two websites with Tower camera info. I have some old catalogs but by the time I find them I won't remember why I...
When I started drafting in the early 60's it was ink on linen with line work done with ruling pens and lettering done quills, the most common being the Judge's...
