Details
Carl Ebner jr.
A nickel brass circular protractor signed Carl Ebner jr, Polytechn Versandgeschäft Schaffhausen - 8 5/8in. (22cm.) diameter, a swinging arm protractor and a square possibly by the same maker; and a brass cased prism with wood handle
See illustration on signature (4)
A nickel brass circular protractor signed Carl Ebner jr, Polytechn Versandgeschäft Schaffhausen - 8 5/8in. (22cm.) diameter, a swinging arm protractor and a square possibly by the same maker; and a brass cased prism with wood handle
See illustration on signature (4)