We do not have the exact dates of his life but it can be assumed that he was working before and after the last world war - i.e from circa 1935 to 1970; the style of each drawing will indicate its date.
Louis Lang lived and worked all his life in Paris, in the VIIIeme arrondisement. He was one of a group of freelance designers - they would make their designs in the morning and then tour the fabric houses, selling ,in the afternoon (information I had from a man who knew of such designers whom I met shortly after buying these designs).
The drawings themselves are each totally individual - no one is the duplicate or a variation of another; they are remarkable for the delicacy of their execution and the precise handling of the ink and watercolour in which they are drawn. They are the original designs from which a further drawing must have been made, probably in-house by the fabric manufacturers as they have no repeats.
They come from the collection of the artist’s son.