A set of drinking glasses for 12

A set of drinking glasses for 12
Tall footed crystal, comprising of 12 white wine glasses (h.18 cm), 12 red wine glasses (h15,8 cm) and 12 Rhine wine glasses with violet coloured cup and foot (h.18,5 cm)
(in very good condition, one glass with two minor chips)
Provenance: MD Thomaz de Mello Breyner, doctor to the Portuguese Royal Family