found this neat antenna insulator today..

[blugotti1]

went looking through some old dump sites and come across this cobalt porcelain insulator made by the Cornish company or knox..

 

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[surf]

Lightening arrester? See here >>> Corwico - Cornish Wire Company

 

[blugotti1]

yes. here to.

Dec 2001 : Corwico - Cornish Wire Company