Part of a self-registering barograph
small part of a self-registering barograph, by Redier, in Paris, 1875. Black rubber end with a metal rod coming out of it.
A self-registering barograph, by Redier, 1875.
Parts
small part of a self-registering barograph
small part of a self-registering barograph, by Redier, in Paris, 1875. Brass piece, with a hole in one end and a notch cut in the other.
small parts of a self-registering barograph
small parts of a self-registering barograph, by Redier, in Paris, 1875. Two metal plates, six screws all slightly different including two considerably smaller, four metal pins and a key.
