1851 Great Exhibition: Official Catalogue: Class VIII.: Charles Hubbard
180. HUBBARD, CHARLES, Dickleburgh, near Scole, Norfolk — Inventor.
Gutta percha portable boat, for crossing detached inland waters; it carries two persons, and weighs only 301bs.
Miniature working model of a portable machine for climbing precipices; illustrated by a model of the crags on the Orkney coast.
Case of ornithological specimens.