English Shetland wool houndstooth knitted vest, sz M

Fine quality sweater vest. Such a cute look for work or dinner- gender neutral. Dark and light grey wool houndstooth. Ribbed V neck and waistband. Old Money. Allen Lilly brand, Nottingham England. I think this may qualify as a waistcoat. Weskit in some literature. I’m from California so this is pure speculation. Please comment if you are from the UK!