N.B. Prices in CAD unless noted. You can knock off 20-25% for USD.

54cmST(ctc)x56cmTT(ctc) Lapierre Full Reynolds 531 with Simplex $850CAD/$680 USD

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Lapierre might not be well known in North America, but they have been leaders in the French bike industry for 60 years. 
Behind Peugeot (which made a lot of crap along with a lot of really really great bikes - see below) Lapierre has probably been #2 in France. Actually they are probably now #1 as they periodically sponsor a Tour de France team. Peugeot it seems did have a carbon bike, but they are essentially a non-entity in the bike world these days. Lapierre rolls on.
This is a cool bike, with an interesting back story. Apparently, in order to not mess with their distribution rights, Colnago branded the bikes they exported to Switzerland "Colner" (from COLNago ERnesto -get it?) But everything on this frame screams COLNAGO.

58cm (?-? tbc) Puch (Austria) "Vent Noir" Reynolds 531 with black Dura Ace/Crane NOS?? $2500CAD/$2,000 USD


58cm 70s or early 80s Puch (Austrian) "Vent Noir" with full Reynolds 531 with early black Dura Ace/Crane
This museum condition 531 classic came out of someone's closet and if has ever even been ridden around the block, that would be very hard to discern. So I'll go with "Seems NOS". The unusual and elegant matte finish is called Black Chrome.

59cm (c-c) French Artisan built, Eroica Ready with Campagnolo Nuovo Record $1500CAD/$1200USD

This is an interesting one. I got it from a fellow in Grenoble who said it had been his father's bike when he was a mechanic for a team around Paris. No brand name on it so I assume he, like most riders in that day (this is probably the early 70s?) just got a frame built at the local bike shop. He didn't know the tube material but thought it was Reynolds. The rest of the bits are amazing and in amazing , nearly new condition. Campagnolo Nuovo Record all round.
click on the image or the title to see a gallery of more photos.