Chess set update: New Information, and now Table, and Italian pieces Brass and Pewter

I sent photos to Chess Museums and collector's clubs. Evidently the pieces from my last post are probably resin, with glass tops on some. Probably from China 20+ yrs. ago. But they were very impressed by the board, it is hand made, one of a kind, the pieces seemed a little large for this board so I put my pieces I bought in the early 70's on the board, they are from Italy, I saw them on internet and wow expensive! They had not been cleaned since then! I invented a cleaning solution! Pour 1/2 cup catsup, 1 1/2 cup vinegar, about 150 drops chili oil, two tablespoons El Pato Mexican hot sauce, tablespoon cayenne pepper, then pour in 1/2 cup of baking soda and stand away! Let soak for about 3-4 hours, then wash with dish soap. Then dry and apply olive oil!! The tile is Gypsum, I think and carved with a boxcutter or knife. I put protective coating so it will keep. I bought the mahogany table years ago at Goodwill. The board clamps right on like it was made for it. One part was loose so last night I glued it with liquid nails and noticed the M S underneath? Is that the maker? Was it made in Mississippi? I do not know the style of this table? I also put olive oil on the frame of the board