The great coincidence is that this looks to be one model shown on Vintage Airstream's photos. It would be a ladder frame and only the later '50 Cruisers had those -- if the production # is actually 6032 as mentioned in the ad. See
http://www.vintageairstream.com/arch...032/index.html
http://madison.craigslist.org/rvs/233545461.html
Antique Airstream
Cruiser from 1950 - $6000
Date: 2006-11-11, 8:21PM CST
Weighs less than 3000 lbs. and is 24 feet long
This is number 32 of 53 Cruiser 24 models built in
1950
We bought it from the family of the original owner
Huge rear bed and all original cabinets and appliances
No floor rot, even the front door lock is original
If the weather isn't too bad. we may be able to deliver
We have towed this over 3000 miles
An older listing from Craigslist:
http://madison.craigslist.org/rvs/222094750.html
Airstream Travel Trailer 31 - $5800
Date: 2006-10-17, 7:43PM CDT
1974 Airstream Sovereign Land Yacht 31 foot rear bath, New transformer, New water heater, New flooring, New water lines and valves. Roof air, antenna, electric hitch, rebuilt stove. Excellent Cond.