While the award winning and amazing “Persia” glaze at Michael Andersen & Sons was developed in the 1930s by Daniel Andersen (1885-1959) and used on pieces from that date, I think it is the designs of Marianne Starck at MAS & Sons in the 1950s and 1960s where the Persia glaze is seen at its best.
This complex glaze turns out differently on each piece, depending on the glaze colourants used and style of decoration. Sometimes it appears like a pearlescent multi coloured micro-mosaic, and at other times as a more subtle pattern decoration with grey pearlescent hues. Often the pieces using this glaze have beautiful but subtle oxidisation of the glaze, giving some of the colours a slightly metallic appearance – especially noticeable on the red colour of the Viking longboat in the first image below.
The glaze is also surprisingly smooth and silky to the touch. The Persia glaze was used on all types of forms – from utilitarian pieces to sculptural forms.
Below are some of my favourite pieces using the Persia glaze.