Easy McCall's 3264 - size 12 - cuff interfacing piece missing - 1987
This isn't actually a pattern for five dresses, but a pattern for two pullover dresses (A and B) and three tops (C, D, and E)! Plus there's a bonus skirt that doesn't seem to get a letter assigned to it! You get so many options with this little mmm'baby.
This is a one size pattern in size 12.
The envelope has the expected wrinkles and small rips. Piece 11 (interfacing for B + E cuff) is missing. Thankfully it's a easy one to draft up yourself if you choose to!