23 by Grayson Perry RA

From 1987 and appearing in Grayson's Birch & Conran exhibition 16th September to 9th October 1987, catalogue number 66. 

The prose to the front of the dish is likely a quotation from Aleister Crowley (under research), the famous English occultist, poet and oft magician; hence the reference to the number 23, a number of significance within such circles 

Stamped to the front