Its marked Sterling, I dont know the maker. It has one small dent, see it in the last picture. Not very noticeable, especially considering the size of the pitcher. Could use a good polish. I think the monogram is an M.
Please see pics for more detail. The item "Sterling silver water pitcher large 3 Quart Capacity 1142 Grams" is in sale since Saturday, November 27, 2021.
This item is in the category "Antiques\Silver\Sterling Silver (. The seller is "floridiandays" and is located in Cocoa, Florida. This item can be shipped to United States.