About a year ago, there was a lovely time capsule 1968 PX-10 offered on eBay. In my size too so we're talking big like a 64cm c-t. It was a reserve auction. I bid an absolutely obscene amount of money on it (and I'd be embarrassed around all the Confentissimi e Masiosi here to reveal just how much) and still didn't make the reserve! And I was like $800 over the next best bid. Yikes. I have no idea where this wound up. If it went to Japan, it's gotta be a wall hanger in that frame size.
Anyway, it was indeed a 1968 with 4.68 date on the derailleur cage (oddly enough I queried the seller on this and asked "is there a date code on the cage i.e. 4.68?" and yep it was 4.68! Spooky. And it was in all respects the same as a 1969 except had a black-faced derailleur. And yes... NO oil hole/clips on the Normandy hubs, either. Brooks Pro saddle.
1968s are rare. Growing up in Washington, DC, our very own Tow Path Cycles on M Street (where the Four Seasons Hotel, Georgetown is now) about five blocks from my house was one of the very first Peugeot dealers in the country and think it was about this time they started stocking them. So I surmise it wasn't until 1969 that they really started to be marketed and sold in the US.
Peter Kohler
Washington DC USA