Any idea what this is worth? Voit Swimaster Polaris II

[lnjohn]

I stumbled upon an estate sale today and bought 3 steel tanks, 2 steel 72's and an HP80 and 40lbs of soft weights. The owner wanted everything out of the garage, and gave me this regulator. I am trying to determine if it has any value. Here are some pics of the setup. I am interested in selling if anyone has an interest in this setup with pressure gauge included.
thanks
John

 

[simonbeans]

Showed up in 1967 as R-14. Piston first stage, R-12 Second stage. Not too much value, but put on eBay and find out.

 

[herman]

It has some but it's not a huge amount, $10 to $15 would be my guess. If that is the same second used on the early MR-12s, they are actually quite good regs.

 

[lnjohn]

Amazing, 45 years later and the gauge still works. The regulator is free flowing, so I have placed everything on ebay, starting bid $1.