I've been wanting a folding ruler for a long time, but I wasn't interested in the wood or plastic versions, too clunky from being so thick. I've seen a few old metal Lufkins before.
I had ordered this aluminum folding ruler from Best Made Company in NY. It wasn't cheap ($45) but this thing is a real beauty, accurate and an absolute dream to use. It's close to what I would expect Woodpeckers to make if they ever make a folding ruler (which they should). I may still pick up an old metal Lufkin from ebay as well. I like having 2 of some tools.
It's exactly 2 meters or 78.75".
I wish it had 1/32" markings for the first foot or so. But it's so crisp as is, I find I can gauge anything under a 1/16 quite well. I can always use the metric side.