Glass Tempered 4 Mug "Princeton" by Corning, USA 70-80s

Dimensions. Mug height 3.5 in (8.5 cm), diameter 3.25 in (8.5 cm), maximum capacity 9 oz (300 ml). Condition. Excellent condition, no chips, cracks or scratches. There are minor spots on the bottom of one of the mugs (see second to last photo). Description. 4 vintage tempered glass mugs by Corning. A laconic pattern of flowers and stripes in blue and red. This design was called "Princeton". Microwave and dishwasher safe.