WW1 Era Wellington College Salop (Shropshire) OTC Enamelled Button

Wellington College Salop OTC button, circa 24mm in diameter, fixed shank (slightly bent over) and maker marked Vaughton, Birm (Birmingham). Some wear to git but enamel intact. Never seen the like! The college changed its name to Wrekin College in 1921. Rare. Comm ErYa