Candlestick was made by the McKee Glass Company circa 1950s. According to "The Complete Book of McKee Glass" by Sandra McPhee Stout (page 330): "In 1957, McKee Glass Co was owned by Thatcher Glass company and they reintroduced the Number 9 line, in Opal (milk glass), and clear crystal using the original McKee molds. They called it Plymouth Thumbprint. The pattern is similar to the ever-popular Cape Cod which is a classic of the Imperial Glass Company. This style is also similar to the Peanut Butter glasses promoted by the Jeannette Glass Company.
Tom Felt says that he can not find any indication that the pattern was issued priot to the 1950s.