Probably carbolite 103, a Peugeot made tubing. Indicative of the lower end of the line. My UO10 is made from it.
"Record Du Monde" is somewhere on practically every Peugeot ever made. It's on all six of mine (soon to be five again. I found a wrecked UO8 at the thrift today for fifteen bucks, and bought it... because it had a pair of classic simplex retrofriction shifters on it, worth 2-3 times the 15 bucks. The frame will shortly be discarded after I finishing stripping the headset and BB cups).
Buy the bike if you want something to tinker with. It's probably an okay ride, nothing earth shattering.