The one tuba is almost definitely a Rudy.
The bumpers are clear neoprene.
The valve stems have the same "industrial" look as a Rudy.
The thumbring, ferrules, and receiver look like most every Rudy I've seen.
I think the clear nylon tube around the bell clinches it for me. Rudy's and MW's always come with that. I know that this ring and the bumbers can be added aftermarket, but I think that these are OEM parts.
The lacquer also appears to be Rudy, especially from the looks of the second valve slide.
Who knows...
I could be way off.
On the Whole-Tone tuba...
It may be the highest yet, but I t would have to be very high. That old York 3-valve moster BBb in pretty good shape went for something around $7K

on eBay.
I find eBay to be more entertaining every day.