Two Samples of Telegraph Cable for Floating Mines and a Break, Matthew Fontaine Maury (possibly), c. 1866

Two Samples of Telegraph Cable for Floating Mines and a Break, Matthew Fontaine Maury (possibly), c. 1866

iron, brass, copper and an unknown synthetic material (probably gutta percha), l 5.4cm × d 1.9cm Catalogue entry

Catalogue entry