Telephone Switchboard Drop Signal, 1900-1925
01
Artifact Overview
Before long-distance direct dialing became widespread in the 1960s, switchboards connected calls. When a caller picked up the phone, drop signals would indicate to an operator that someone was on the line. The operator would ask them for the number they would like to connect to and then manually connect the caller's line to the recipient.
Artifact Details
Artifact
Drop signal
Date Made
1900-1925
Creators
Place of Creation
Location
Not on exhibit to the public.
Object ID
42.190.140
Credit
From the Collections of The Henry Ford. Gift of Independent Pioneer Telephone Association.
Material
Iron alloy
Copper alloy
Hard Rubber
Dimensions
Height: 3.75 in
Width: 1.25 in
Length: 2 in
Inscriptions
Eureka
Patented
9
17
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