Stored since 1962, this 1938 Bugatti Type 57C Atalante Coupe, bodied by Gangloff of Colmar with Stelvio, is a masterpiece of craftsmanship and history. It will be offered for sale to the well-heeled public this coming June 3rd at the Greenwich Concours D'Elegance, with an expected haul of $300K-400K.