Any help identifying this old flatbed.....

It's 3/8" copper tubing which is as straight as the Nile River and goes around a handful of bends.
If it is possible, I think it would be more work than what it would be worth, if it is even possible

 

Yup, the boards are completely stripped off the trailer and the copper is just floating around on top of the stringers now.

I am thinking of taking them under the deck and support under the stringers with insulated fasteners. Also thinking of doing the same with the electrical

 

So, an update, if anyone is still following this thread.
With the electric and air, I have decided to use some channel iron and use it as a "trough" for the lines to lay in the entire length of the trailer. So, under the stringers, this channel iron is welded in place, and welded to every stringer, down the middle of the trailer. I was just going to go with just insulated hangers but thought about the possibility of items coming down and ripping the lines out since there is no deck on the trailer yet. This will also prtect the lines from anything on the road also.

My helper will be slapping some paint on her today. All the lights and wiring came yesterday. Air lines should be here Tuesday.

Had a VIN inspection done by the local Sherriff and he said he's never seen a trailer VIN be only 5 numbers. He said, take the license plate to the DMV and see if they can come up with anything. Since it hasn't been registered in almost 30 years, her system didn't bring up ANY info on the plate or VIN either. Also, Anchor Equipment is not listed as a manufacturer in her system. So, the paperwork was turned in as a 1972 Anchor Equipment Unverified Flatbed trailer and I walked out of the DMV with new registration and plates.

But the Big news and this ties to the OP.....
While I was under the trailer, I found the document box (registration box) hidden inside the framework of the trailer. It's all aluminum (except for the bolts and wing nuts) and to my surprise, it actually was easy to open up.

Inside, there are Utah State inspection certifications from 1978, but the paperwork does show the VIN to be only the 5 numbers and I found out the trailer is actually a 1964 Anchor Equipment Flatbed. Found this a day to late, but I'm not going to mess with it and try to stop the DMV process on titling. It went too easy to go throw that wrench into the mix. haha

Once I get the thing done, I'll post a few photos. She's not restored, but she'll look so much better.

 

Good idea. Just not sure I want to stir up a power crazy state like Utah over something so miniscule.
Maybe later when I go to sell, if I ever do, I'll get the itch to get it right.

Paint is on. Working on electrical now. Coming along awesome. Shes looking great!