This is a "tool, tube tester" manufactured by Western Electric.
The manufacturer gave it the part number "KS-5785-L1".
The phone company gave it the part number "KS-5785".
This object has museum accession number 181.
It is contained in Shed storage.
Tags: KS-5785 tube-tester tool manufacturer:name=Western_Electric
(machine-parsable metadata for this item is available here)
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