Clocks
Subject
Subject Source: UK Archival Thesaurus
Found in 1 Collection or Record:
File
Papers on telegraphic communications, 1851 - 1855
File
Reference Code: GBR/0180/RGO 6/627
Scope and Contents
Correspondence and papers concerning telegraphic communications, including several diagrams of galvanic wires in the Galvanic Room, basement and Front Court at the Royal Observatory, Greenwich; papers on galvanic circuits connected to clocks at the Royal Observatory; maps of principal galvanic wires in the Observatory Park and grounds; material on connections to the South Eastern Railway; papers on American transit equipment and telegraphs; patents for electric clocks by Messrs Barwise and...
Dates:
1851 - 1855