Not so fine than your Randall or Rolex..., I 'm a collector of all American 60' dinner deco as interior dinner ( red table, barstools, juke box, wall box, coca distributor, neonlights, pinball, ) , old fridges ( GE, Frigidaire... ) and automobile license plates from USA & Can.
About this, I've tried, in the past to get some old and unused license pltes from your Airstream to try to do a complete suite of all states, only in trailers category but no success. Here was the link / threat about this:
But the real jewel for me is my AIRSTREAM, my old silver bullet.
NB, i'have bought this old coca-cola distributor, and it gives me really fresh coca- cola in glass bottles, as in the 60'... What a kick !!!