Brass Base Perpetual Calendar

A calendar that will outlast the one in your cell phone, this polished brass piece makes a terrific gift. It is an early, simple pocket calculator that dates back some 500 years. To calculate the given date within a 100-year time span between 2019 and 2118, simply rotate the dial until the selected year lines up with the selected month. From there, the date and day of the week can be located below.