Hi there Tom and thanks for joining us. The items were made by the Whiting Manufacturing Company of Providence, Rhode Island and retailed by Black, Starr & Frost. Whiting used date symbols from 1905 until 1924 but yours do not seem to carry any of those marks. Does the Black, Starr & Frost have an “Inc” or “Ltd” follwing it? If not, it dates from 1876 to 1929; if “Ltd”, its post-1962.
The various permeations of Black, Starr & Frost had outlets in New Orleans, Savannah, and New York. It was not unusual for the retailer to apply its mark to silver goods.