The Sparks Telegraph Key Review - Informational and photo display site on telegraph keys. Includes information about instruments used during the spark-era of radio. By Russ Kleinmann, WA5Y.
SV1EDY Homepage - A telegraph instrument collecting site located in Greece by ham radio operator, Apostolos Bourousis, SV1EDT.
The Telegraph - An assortment of telegraph instrument images compiled from several early physics apparatus collections by Professor Thomas Greenslade Jr. of Kenyon College.
Telegraph Key Collection - Online personal museum from Italy of telegraph keys and related items.
Telegraph Lore - Site covers all aspects of Morse telegraphy and telegraph instrument collecting.
The Telegraph Office - A resource for wire and wireless telegraph instrument collectors and historians. Several images of instruments are viewable in the photo galleries.
The Vibroplex Collector's Page - Includes information about identifying and dating Vibroplex Bugs. (Semi-automatic telegraph keys used by telegraphers and radio operators to send Morse code.)
W1TP Telegraph & Scientific Instrument Museums - The Telegraph Museum on this site contains hundreds of images of American and foreign telegraph instruments from different eras. Presented by Tom Perera, W1TP.