Italian Pottery - Can anyone id?

Hi. Hope someone can help. I found this dish/bowl in Yorkshire recently and can see marks on the base but they are very faint and difficult to read. There appear to be 2 marks - a printed mark in yellow that is made up of 2 lines. I can make out the lower line that reads MADE IN ITALY but the top line is very faded. I think (and I emphasis the I think) that I can see SSI (BITOSSI?) as part of the top line mark. The other mark is at the centre of the base that looks like an inscribed YI or Y1. It measures about 9 cms tall x 14 cms in diameter and weighs 535 gms. If anyone can id that would be much appreciated. Thanks

FULL SIDE VIEW



TOP VIEW



BASE VIEW OF PRINTED MARK



FULL BASE VIEW