Vintage gaston jaunet black sweater 1960's-1970’s

Vintage French designer gaston jaunet black sweater 1960's-1970’s. This sweater is in amazing vintage condition there are no noticeable flaws rips tears or runs. This has the size 1 not sure what that translates too so please look at all Measurements, this is a light knit material I think it’s silk but there is no tag so not 100% sure. The sweater is see though see photos Please ask questions before purchasing