- US IlHpHS elis.gra-1.70.325
- Item
- n.d.
Part of Elisha Gray Collection
Part of Elisha Gray Collection
Grand concert... : Electric telephone
Part of Elisha Gray Collection
Part of Elisha Gray Collection
s.n.
Gray National Telautograph Company : Cover
Part of Elisha Gray Collection
Gray National Telautograph Company
Gray National Telautograph Company : pp. iii-iv
Part of Elisha Gray Collection
Gray National Telautograph Company
Part of Elisha Gray Collection