This is a vintage baby formula can. It dates from about 1950. It's labeled Pet Purevap made by Pet Milk Company, St. Louis. There are three winged babies on the front and detailed information about the product on the back. The original nipple is still in place as when it was when originally used. Overall very good condition with surface discoloration on the bottom rim. Overall height is 4 inches to top of nipple. It is 2 inches across. Not many of these are likely to have survived!