Vintage Riefler Drafting Tool Instrument Set Made in Germany " G1/51 " 1951

Description

This is a nice Vintage Riefler Drafting Tool Instrument Set Made in Germany. It says  "G1/51" which I assume is the model and year of 1951? Appears to be complete as far as major instruments and they move smoothly and accurately. There is a
bit of cloudiness on instruments
as shown. Not sure what that is about. The case is in very good condition considering, with
nice Riefler label
.
History of Riefler and info on this set:
"This Riefler G33a (which is very much like this G1) set marks a departure from the round system, probably in the 1950s (this set is 1951 as indicated by label). The compass can be quickly adjusted and then clamped to the arc by the small lever before fine adjustment with the screw at the leg end of the arc"..."
The firm was founded by Clemens Riefler (1820-
76) in 1841 following his apprenticeship with Ertel in Munich. The 'Round System' of compasses, for which the firm is famous, was patented by his son Sigmund in 1877. The firm was located in Bavaria, with premises in Nesselwang and Munchen (Munich). Riefler continues today in Nesselwang, making drafting furniture and CAD equipment."
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