Extremely rare & antique protractor. Base made by Central Scientific Laboratory Apparatus Chicago USA (base).
Hallmark on brass protractor indicates it was made by Wagner Bros Germany Co. Looks to be an apparatus for showing that the angle of reflection is equal to the angle of incidence.Base made of cast iron with a mirror over paper and brass protractor device with 2 moveable or adjustable arrows for angles. All defects not mentioned but visible in the pictures will be considered as described. If you have any question, do not hesitate to contact me. Thank you for your visit.
The item "RARE ANTIQUE 1920S SCIENTIFIC PROTRACTOR LAB CHICAGO GERMANY ANGLE OF REFLECTION" is in sale since Thursday, November 29, 2018. This item is in the category "Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Other Antique Science Equip".The seller is "liancollect" and is located in Buenos Aires, Buenos Aires. This item can be shipped worldwide.