Stopped right in my tracks when I saw this. What a beauty. Large oval platter by Santos of Caldos da Rainha, Portugal. Sadly they closed in 2007 so these beauties are no more.
Fabulous scale and creamy white pattern with a large lobster, wave ripples and graceful shells. I would put it on the wall I think and take it down on high days and lobster thermidor days. Very now with the vogue for crustacean core......no that is a thing doubting Thomas ~ look it up.
Dimensions 500mm wide 355mm deep