"No, I don't know it, but if you can write it out for me in accurate notation (or tab if you must), I will see if I can play it for you."
Keep a supply of staff paper and a black pen in your gigbag in case of this eventuality.
Maybe my recall is inaccurate, it was forty years ago. If it wasn't Columbus, I'd guess at Antoria and I'm not certain it was a Ripper copy not a Grabber. Either way it seemed an OK instrument in those days.
Playing open strings is good. It's four notes that are available in any position.
Especially on a fretless where it's four notes that are always available and also in tune.
(Obviously more notes on a fiver, etc.)
Me too but also Mamas and Papas, Turtles, The Assocation, Fifth Dimension, etc, in fact many West Coast/Los Angeles session players. Although some e.g. Carol Kaye were using a Precision.
Fender Jazz with flats (preferably GHS Precision Flats in my view) and played with a heavy pick over the neck pickup is a 1960s thing and not just TV themes.
If it's just a couple of bases in cases, for a few months, I'd ask musician friends to look after them for me ... they usually don't mind too much having an extra instrument lying aound.