Here it is. Clearly a very well preserved specimen with apparently original white chicken head knobs (first time I see this). Starting at 5, 400 USD.
Apropos, do any of the J&A readers know of contemporary players who gig with their ES-150? Jimmy Gourley (one of the more famous ES-150 players) appears to be alive and kicking, and here he is with his ES-150 in a 2005 performance in Paris. Are there others?