Vintage ladies' black and white tartan waistcoat by Bellmans Scotch Wool Shop.  Made of Orlon (a type of acrylic).  Made in the 1950s or early 1960s.  Hand washable with care.

Size: UK ladies size 12.  
Garment measurements: Bust 36", Length (from shoulder to hem) 23".

Condition:
Vintage waistcoat, in very good condition (used). No damage, but the fabric is a little prone to creasing, probably just because of its age.