On February 6, Artcurial Motorcars will bring more than 300 exceptional automobiles and pieces of automobilia to the block at the 2015 Rétromobile Salon Official Auction in Paris. And considering that the 2014 Rétromobile auction set a record for collector-car sales in France, expectations are high for this year’s event.

A major highlight of this year’s auction will be the sale of the Baillon Collection, a group of 60 historic barn-find vehicles discovered last year in the west of France. The collection ori…