You have not found the Peugeot original frame number yet - the one shown in the pics has been stamped after the frame was painted - more recently basically.
Have a look at these pics, scroll down the page and there is my bottom bracket with where you will find the numbers. They are UNDER the paint:
It does look like 1979 or 1980 but look at the catalogues because it should have the rear triangle end chromed in some years - to be a PX10. But does th sticker say "Touts tubes..." or " 3 tubes..."? If all tubes, then it is most likely a PX10 - even my model, the PKN10), had only the 3 tubes of 531.
Hi Slimlavud - thanks for the info - much obliged. To answer your question, no I only got the parts attached to the bike (list below), none of the original stuff.
I'm thinking perhaps a more thorough description of what I've got may help here. Enclosed are a few photos of said bike, to help identify what it is I've got exactly.
The bike hasn't been a runner since I acquired it. However, the frame itself, whilst quite heavily scuffed, and a bit rusty in places, doesn't have any apparent damage otherwise.
The frame is a 58, and I'm 6ft tall so it seems to be the right size for me. The bottom bracket doesn't have a serial number that I can find. However, embossed is "X15" or maybe "X16" - photo attached.
The component list reads:
Mavic Open 4CD rims which don't look too worn, though could do with trueing. These are built around Shimano 105 hubs. From what I can gather these are half decent rims and the hubs aren't too shabby either, so seriously thinking of retaining these.
These are preety good wheels as I understand it - and of the qulaity that would have been fitted originally if they were available then.
Shimano 600 caliper brakes. These are of the deep drop nut fitted variety. I have it mind to replace these with modern Tektro ones (e.g. http://www.sjscycles.co.uk/product.asp?pf_id=73&src=froogle)
Tektro brakes are pretty nasty as far as I can see, fit some Shimano 105 gear from the period, ditto the brake levers - or brake handles as you call them!
Shimano Exage brake handles - these are seriously manky and fit for the bin only!
Huret Shifters - these may be original but if you want to go to indexed and flight deck type, you will need to change these and the cables of course, don't throw them away though, let me know if you don't want them please?
Stronglight chainrings - I can't see from the pics if this is a full Stornglight chainset? If so, it is original and you shoudl leave it on but it definitely looks later to me, if it works, use it!
Shimano 600 front and rear mechs - upgrade to period 105 or later Dura-Ace
Dura Ace Stem and Cinelli bars
From what I can gather, with the exception of the Stronglight chainrings, and maybe the Huret shifters, it appears everything else has been upgraded at some point.
At the moment, I leaning towards getting the frame properly restored (probably Argos as they seem to have a good rep and they are only an hour and a bit away from where I live) and then building it back up with decent components.
Anywho, would be grateful if you can review the pics and confirm my/our suspicion that this indeed a PXN10 from around 1980 - thanks.