The late French entrepreneur Roger Baillon’s forgotten estate has been the subject of much conversation lately – and not just for the property value. Grandchildren of the famed magnate found a hidden valley of treasure, and they’re putting the entire collection up for auction in Paris.

More than 60 vintage automobiles, spanning the course of history from the 1930s through the 50s, were left to rust in sheds on the property, the family none the wiser. Totaling more than $12 million, the treasure trove has been untouched since Baillon’s death more than 10 years ago. The expansive, stunning collection features a Ferrari that’d been used as a prop in a movie with Jane Fonda, an exclusive Maserati A6G 200 Berlinetta Grand Sport Frua (only three had been made), a Hispano Suiza H6B Cabriolet Millio, and a Talbot-Lago that had been previously owned by King Farouk of Egypt.

While cars unfit for auction will be sold for spare parts, the rest of the collection will go up for auction in Paris on February 6 led by auctioneers Matthieu Lamoure and Pierre Novikoff.