This is one sheet with 6 girls in various costumes: 1 bride, 2 bridesmaids, 3 foreign dress. When applied to glass they are nude. Each figure is about 3 ¾ inches high. Instructions are on back of sheet.
These are from The Meyercord Co., item 910-A. They are probably from the 1940s.
Disclaimer: There is no way I can determine if these still work, but I don’t see why they wouldn’t.