Childhood sweets/chocolate

[FortiesChild]

Does anyone remember chocolates from the 1950's, in Uk... made by (I think) Caley's - called milk shakes?? Oblong flat box, pull-out tray, around 8 chocolates in the shape of glass tumblers... solid chocolate at the top of the 'tumbler', the middle had a thick white cream, and a fruit-flavoured liquid cream... they were completely unique, never seen (or tasted) anything like them. They were a bit expensive for our pocket money; cost around one shilling and ninepence (old money) or two shillings and ninepence.... I know we couldn't buy them very often... I've asked lots of people about them and so far, no-one else remembers them! Surely someone out there can confirm that they really existed???