Stavangerflint 'Opaque' ceramics

When hunting through one of my boxes of ceramics I found a small Stavangerflint pin dish. It is from the 'Opaque' range - a series of ceramic vases, plates and other items in a creamy white matt glaze with simple floral and figurative designs in blues and greys designed by Inger Waage. I think they date from the 1950s or early 1960s. This is my favourite range Stavangerflint range and I have a few other pieces. Here are some pictures...