Pair of vintage Newman Melamine Ware beakers 1960s

A pair of vintage Melamine Ware beakers made by Newman in the 1960s and marked Newman Melamine Ware No 201 on their bases. The beakers are an elusive colour which, depending on the light they're viewed in, seems to change from white to light grey to light greyish blue. They have a volume of 200 ml and measure 8 cm in height and 7 cm in diameter. Offered for sale as a pair, they are in excellent condition.