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

61STx57TT Raleigh Competition Gran Sport $1200CAD / 

57.5cm ctc ST Late 70s Puch Vent Noir; (French threaded) Reynolds 531; 1st Ed. Dura Ace​ $2500CAD/$2,000 USD

This museum condition 531 classic appears to have been riddeen from the Dijon bike shop in the 1970s to the original owner's home and then never hit the streets again.
it is just That clean. So I'll go with "Seems NOS".
The unusual and elegant matte finish is called Black Chrome.

Steyr-Daimler-Puch "Vent Noir" virtually unridden.
SN 5962329 F (French threaded)
matte black finish.
Groupset Shimano Dura Ace first generation black
RD Crane
Wheels: Shimano hubs, Fiamme gold rims, Wolber tubulars
Stem: SR (forged) 85mm (I have longer SR stems)
Bars: SR World Champion 42cm (outside)
Seatpost: Selle San Marco GS ("brev..") 27.2mm
Saddle: Selle San Marco GI-LUX 3000 (suede finish)

Metrics
HT 157mm
TT 57cm ctc
ST  57.5 ctc/59 ctvt (very top)
wheelbase 1030mm
crank arms 170mm 14x1.25 (french)​

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.