Vintage yellow and black blazer

Excellent condition True vintage and unique! Black blazer with yellow and black striped interior lining No tags for brand or material but says 6 and is small. Probably polyester but has a wool texture and silky lining. Note small run hard to notice. 5 front buttons, 1 for each pocket. Cuffs have button holes but no buttons About 21” total, about 18” pit to pit, about 21” shoulder to cuff This item is great condition and sold as is. Please review photos and ask questions prior to purchase Thanks