MARGARA SHAW adorable 100 % wool cardigan

Gorgeous cozy vintage cardigan, 100 % wool. In overall very good shape. Only minor flaws that can easily be fixed: 2 male parts of the snap buttons are missing, a seam is opening up under one armpit, and the little buckle on the backside of the cardigan needs to be sawn back on. There is a 0 on a tag, but not sure whether that refers to the size, and if so, is it an Uruguayan sizing? Fits like an XS. Pit to pit 17.5” Shoulder to hem 19”