These fish condiment sets are stamped "Wilkinson Ltd England". Arthur J Wilkinson (Ltd) was a manufacturer of earthenware and ironstone at Royal Staffordshire Pottery (previously at Central Pottery), Burslem between 1885 - 1964. The famous Art Deco designer Clarice Cliff worked at this pottery. These sets are often attributed to Clarice Cliff, but none of these sets are marked with her name.
As you can see, these fish condiments came mostly in two different styles (depicted above and below) - with and without dots. If you see this set out "in the wild" you might wonder whether it's missing a tray, but after you find 7 sets without a tray you can be pretty confident this set does not have a tray.
The fish have 9 and 1 pour holes - which is a common pour hole pattern of England pottery S&P shakers in this era, circa pre-WWII.
An unusual color variation
|Addition information about the Wilkinson Ltd pottery company
Earthenware and ironstone manufacturer at the Royal Staffordshire Pottery (and formerly at the Central Pottery), in Burslem, Stoke-on-Trent.