Flint, pink, green
Notes by Anne:
I originally thought that this might be uncatalogued Rosice (Czechoslovakia) as the same shape tray with a different base pattern appears in the 1950s catalogue from Moravske Kyjov at Rosice (see Czechoslovakia > Rosice > pattern 2036) but then some labelled versions emerged marked Crystalor Made in England.
It is possible that the moulds used by both glassworks were supplied by the same firm, or that Crystalor bought moulds from Rosice or vice versa but there is no proof either way at the moment. So far nothing else is known of Crystalor.
What may be significant is that the tray is often found with the same pots and candlesticks as are the Century trays, and that both Century and Crystalor are found in the same three colours: pink, green and clear.