Results

Papers of Messrs Eidsforth and Mudford, Electrical Engineers

Letter Sir Charles Bright to Edward Bright

Advertising handbills for electric lighting, bells, batteries and lecture by Francis Mudford

Block relay bell

Block relay gong

Bell case

Intermediate S[iemens] and H[alske] morse set with bell circuit

E B S R block relay bell with telephone

Copy drawing of an electric bell

Copy drawings of light indicator with bell and switch and signal repeater circuits

Specification for bells and bell-gongs issued by the Post Office

Bell punch

Diagram of Assembly of Control Switch Neutral Return with Bell Contacts