116 button is very common use, even up today. Sews on easily, stays secure and is useful in tons of places. Size is 1-1/4″, that falls into the large group. Price is 1 to 12 @ .92 each, 13 to 144 @ .84 each and over a gross .74 each. Matching buttons 151, 152, although this has a raised dome, it still could be used along with the other 2 hole buttons. Common in Colonial wear.