Hang on to that stool Spartan2 !- you can't find them anywhere anymore.  I have one just like that, except mine does have a folding backrest - a Coleman I think it was.  I use it occasionally when camping out of my truck - they are very light and it would be a good choce for taking along on a canoe trip.  same thin aluminum tubing that used to be on lawn chairs - also hard to find unless you get lucky and score one at a garage sale.

what is surprising to me is that they aren't made anymore (neither the cheap $10, light stool, or the old style lawn chairs) apparantly, or nobody carries similar chairs.  choices have devolved to the ubiquitous steel fold up umbrella type chairs that weigh 4 or 5 pounds, or to "high tech" little chairs that cost an arm and a leg - like a $100 for a little chair! - or to the fold up tripod stools, which I don't find all that comfortable, and also aren't very cheap.