I have been opening boxes for charity shop donations and found these in my unit, can not find the fourth but from memory it was green, all have the shear mark on them (which some call a gadget mark) and one looks Webbs golden amber, the other Stuart blue and one is pink. Ive actually found a glass with a gadget mark i'll put a pick on here a Cranberry rummer, a horse shoe shape on top of the foot.