VINTAGE 17 Used Madonna and Child Christmas Stamps

Set of 17 used Madonna and Child U.S. Christmas stamps. Each is in a sleeve and the back is labeled with the year, but I have not verified the information. According to the labeling, they are from 1966, 1973, 1975, 1978, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1989, 1990, 1991, 1992 and 1993.