Popular in France as the "moule à charlotte", it is known more prosaically in the UK as the Jel n Serve. Whatever you call it, this product is nothing less than history.  See below a 1960's Tupperware party invitation, showing the Jel n Serve as it was then, and as it still is now!

Consists of the domed mould, seal, and the four classic top-seals to create a design on your dessert:  heart, tree, flower and star.  Comes in white and raindrop blue.  

Does not include the serving platter shown in this vintage version.

1.25L capacity, 22 cm diameter

.