Inside Out Library · Explore
American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 672
BINDING SCREWS, 4 !£ & double connector; ^, c and dare single connectors. b is known as the FIG. 430-Telegraph
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
More pictures from American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation
More like this
