Harvey's PX-10 would have Normandy GOLD FOIL hubs (the ones with the raised flange) and Mavic Monthlery red label rims. Now I am sure there is someone out there with a late 1960s-mid 70s PX-10 with something else that you know is original (and might well), but I've never seen any deviation in these two components.
And come to think of Harvey, I have an extra PX-10 wheelset that you might be interested in. The skewers with the delrin wingnuts.. you're on your own bidding against the Japanese on those. But I, astonishingly, scored a set for $25 (!) last night on eBay.
And Harvey.. it's great to have one other of our local Washington CR Listers with a French bike. That makes, at last count, two of us.
Washington DC USA