[Boatanchors] Mystery IF Filter

[Doug Hensley]

A round of applause for anyone who can identify the filter at:

http://www.w5jv.com/Staged_for_viewing/Mystery_Filter/

Never seen one like this but strikes me as a clone on Collins.  Has a tie downhole at the top, normal 7 pin glass to metal feedthrough at bottom.  Anyoneknow what this went to or was ?
Thanks in advance,
Doug W5JV/NNN0BXX

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