First Telephone Exchange
Appearance
The First Telephone Exchange was a historic telephone exchange and historic site located in New Haven, Connecticut. The exchange was established by George W. Coy, proprieter of the District Telephone Company of New Haven, in 1878. Coy had built the world's first commercial telephone switchboard, and with Herrick P. Frost and Walter Lewis, had established the District Telephone Company of New Haven in January of 1878.