The third drawing was part of this 1998 Christie's auction.
The other drawings were Lots 374, 375 and 377 in a 2006 sale.
The three from the 2006 sale were from the collection of François Ducharne (1883-1975). "He specialized, with great success, in the production of silk of high-quality intended for the largest dressmakers of his time, Paul Poiret, Madeleine Vionnet, Elsa Schiaparelli, Balenciaga." (From the Babelfish translation of the Lot Notes.)