What is it?

[Msmoto]

Here is an older Airstream sitting for several years behind a barbed wire/chain link fence, photographed with some difficulty. Whether this is for sale or not I do not know, but will check on this if someone requests this.
Airstream_Vintage_Unknown by Fantinesvoice.com, on Flickr

More images:
https://www.flickr.com/photos/fantinesfotos/

[mdenney]

Mickey
Denney

[Stefrobrts]

I'm going to take a guess and say early 70s Safari?

1974 Safari 23' - Vintage Airstream

[SteveH]

70's 23' Land Yacht, IMHO. (had one like it)

[jakeandkate]

Looks like 70s trailwind

[dwightdi]

If you can read the plate on the side of the trailer by the door you will know exactly what it is. NOt that rare or worth that much. Check the axles, they are usually bad and a major expense item.