VINTAGE WELCH STRAIGHT TELEGRAPH KEY/lab switch, pristine condition

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VINTAGE WELCH STRAIGHT TELEGRAPH KEY/lab switch, pristine condition:
$31.85

This deviceis aWELCH key, with the trade mark on the wood base.The base label reads \"W.M. WELCH SCIENTIFIC COMPANY\" with a complete address \"1515 Sedgewick St. Chicago U.S.A. and a statement of Established 1850\"Contacts show no wear, I never used it with a sounder, it was a static display with LGB model railroad layout. Wood base is a 10.