I remember seeing one and three log loads fairly frequently when I was growing up and into my twenties. Now you can't sell anything over 45", the existing mills can't handle anything larger. Toured the Weyerhaeuser Mill B in Everett WA when I was in college, that mill was designed for 36" up to God knows what sized logs, really impressive!
That beetle video just blemished this fine thread... rules should be 'black and white photos only, no bell bottoms'... interesting video, buddy at work showed it to me a few weeks ago, but that belongs in the 'people towing things wrong' thread. .
Sleepers could be located in the front of the trailer over the fifth wheel or under the trailer in front of the trailer's wheels.
It took a little searching to find a Black and White of the Model A