My 21" 1967 PX-10 matches the description Peter Rogers listed.
I got it at a local charity at the end of 2007. The person who donated it said that it had been sitting in a shed for at least 15 years. It was completely covered with a layer of dust - a true barn bike!
The Brooks Pro saddle was a wonderful russet red color. Unfortunately it turned darker as soon as I touched it. It's stamped with a 1967 date code.
The bike came with 2 sets of wheels, the original sewups with Normandy Luxe Competition hubs and old diamond decal Mavic rims plus a later set of 27" clinchers with a date of 1989 on the standard Normandy hubs.
Everything appeared original except it had a later model Simplex Criterium rear derailleur dated 1973. The original would have been a Simplex Prestige-Criterium with a black plastic name badge.
Here's a link to pictures on Flickr:
<http://www.flickr.com/photos/28267220@N05/sets/72157624217336148/?
I changed out the original AVA cast aluminum "death stem" to a shorter. later model AVA cast aluminum "death stem" and switched to wider period correct alloy bars.
Aside from that, new cables, tape, 27" clinchers plus a thorough cleaning, I haven't done much else to it yet except occasional rides.
The serial number is 483675 which doesn't say much according to the information on the CR PX-10 web page.
http://www.classicrendezvous.com/
One thing that I look for on 1960s PX-10s is the Peugeot decal on the down tube. Around 1969? they changed from the simple gold with a black shadow to a more elaborate design.
Chas. Colerich Oakland, CA USA
> Well, the summer is apparently starting to cook here in Northern Cal...what
> with Singers for a Song and all that. I'll have to be satisfied with my
> humdrum recent 60's PX-10 acquisition. Knowing how tricky dating these
> lovelies is, I'll report that close inspection of Prestige derailleur revealed a
> stamping (3-68) on jockey cage. This closely coincides with probable build
> date of this PX-10 w/Model 93.
>
> Also, I noticed that pics of 60's PX-10s (if B&W), have black-painted
> seat-lug and BB shell while 70's are left white...just head-lugs black. I wonder
> if this change can be traced to a specific year and ditto change away from
> Nervex Pro during 70's PX-10?
>
> Jack Romans
> Sacramento, California