Vintage Set of 2 large genuine shell buttons with 2 holes. I am not an expert, but I think that these are a green abalone shell as opposed to Mother of Pearl shell. On the backs of the buttons, rough green areas of the shell are visible. The original LaMode card states "Green" on it. I do not believe that Mother of Pearl would be labeled as such.
Each measures 1.125" [1-1/8 inches] in diameter. As is often the case with shell buttons, each button has unique shaping, so the two are not exactly identical, as you can see in the photos.
They would be perfect for a handknitted sweater or shawl, used as focal buttons, home decor, sewing, jewelry making, and as an addition to a button collection.