the flyer says Sep 28/29, but that far off it may be rescheduled, need to keep an eye on the auction site for further developments, and VanDerBrink has an established client list that get color catalog listings sent in advance and can scoop most anything ahead of time. a friend of mine is among that crowd, invited me to fly down with he and another friend with a private plane, unfortunately that's in my production season, but I asked him to take lots of pics for me
'dulled paint'? you don't really think you can tell the gloss level of a truck stored 55 years from a digital picture on the internet? what I see is the floor from
the driver side appears black - from
the pass side it looks the same dark gray as my 58 is, and the gloss level looks better from that sunny side, it was the top of the dash that was "No-Glare" dull - I also see details in
this pic I've never run across, like the seat upholstery coming so far down the back so the bare springs aren't visible thru the big window, and the seat hinge irons black rather than grey [maybe to match the Cameo color combo] ... and there's your original floor mat, shipped rolled up on top the gas tank

and yes, the bed wood was a "nice [flat] black" when new, unfortunately they cheaped out there too, not doing a real paint job, and as seen on the auction truck, the black wash disappears pretty fast, including from the skid strips, they look rusty to me
"
Phospheric acid will not turn clean steel black. It does turn the rust to a nice black though. And 2 phosphate will not come off easy, like a paint will." if they used a phosphoric bath it would have been to deal with [hide] the surface rust resulting from the mill pickling, not on 'clean steel', and while it wouldn't come off easily, 50 years later on a lightly used truck someone might mistake it for paint, but under steady use in a wet climate the iron phosphate layer will return to iron oxide, surface rust .... over the years of the series, no telling what changes were made on such things, particularly to cut costs
Bill