Forgive me, but is'nt that a Sovereign ?the land yacht is the trim package .. and if you want a true estimate of what its worth more then one picture may be needed as it is almost 50 years old.....
I'm not sure about it being a soverign but there is a metal tag by the front door that says "Land Yacht". Can't send more pictures right now because the airstream is located on a piece of my property in Georgia (about 280 miles away) but when I get back there I will take more. The inside needs work.
You could check RJ Dial's vintage airstream site for price vs. condition info. It's no more than a very rough estimate and apparently he hasn't updated since 2010.
This trailer isn't currently being used and appears to be in "As Found" condition at best, so it's possibly worth somewhere between $0 and $1800, all depending on the true condition, and the market conditions in your part of the world.
If it's been sitting unused for a while then it probably needs a ton of work, but if the shell is clean and straight, there could be a collector out there willing to revive it.
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