I remember the time frame when Alembic left the 60 Brady St in San Francisco location and "Stars Guitars" moved in their folks , some of whom some I still remember by name. I remember seeing all kinds of modifications of various descriptions in progress and displayed there . This might be one of those perhaps .
In fact I remember purchasing a single such pickup ( old light brown type as shown on this instrument in question ) there at that same time period with the intention of installing it in a Gibson EB-0 type single pickup configuration . I had been told that I would need to provide a buffer preamp and hum-canceling coil system for the probability of success.

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