I emailed the seller about the headstock and jack socket and here was his response.
My question was, What has happened to the headstock, it looks like the original Elan headstock has been broken and re-shaped.
The jack socket looks no-standard too.
Was this done at the factory by alembic or was it done afterwards?
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Answer
The headstock is shaped like another model. The edges are factory. The jack socket is also factory. I bought the bass used at Guitar Center. The manager at that time is a friend. A recording studio owner had just brought the bass in for trade, and he gave me a call. We did the research on the bass, and I made the purchase. Every thing on the bass is original. For some reason this Elan does not look typical. I did find some matches with time. A year ago or so, an identical bass was on E-bay. So much so that I had to open my bass case to make sure it was not mine. It is not typical, but it sure is a beauty.
Jazyvee