This is a vintage Jackie Kennedy style 3 piece suit which includes a sleeveless knit top, skirt and blazer. It's made by Glasgo Knitwear. It's made of wool and mohair and I'm basing the size by the measurements;
Sleeveless top- Chest 32", length is 19" Skirt - waist un-stretched is 23" but will stretch up to 28", length is 23" Jacket- chest (from underarm to underarm) 35", sleeves 16", length 20"
All 3 pieces are in very nice condition.