I was reminded of this fantastic retro design recently when I found some interesting variations of the design on Etsy.
The full name of the design is Hornsea Lancaster Vitramic, “Muramic” .
It was made at the Hornsea Lancaster site 1977-1980, where the the award wining “Contrast” design amongst others was also made.
There are a number of different designs within the “Muramic” series, but the most commonly seen items are variations of the round shallow dish.
Other products included some fantastic wall plaques like the one pictured below, and even jewellery (very hard to find now)