Instructions
Find an old spoon with a mark that says "Wm. Rogers," surrounded by an eagle and a star; this is indicative of a spoon made between 1825 and 1841.
Look for a "Rogers Bros." trademark to identify a spoon made by William Hazen, Asa and Simeon Rogers between 1847 and 1853. Check the back of the spoon for the mark.
Locate a "Wm. Rogers and Son" mark on the back of the spoon, followed by a star, to identify a spoon that was made by William Haven Rogers and his son, William Henry Rogers, between 1856 and 1861. Check the front of the spoon for an emblazoned eagle and the name of a state; these spoons were part of the commemorative state series made after Rogers' death.
Look for a mark that reads "1865 Wm. Rogers," which would be written horizontally on the back of the spoon.
Find a "Wm. Rogers Mfrg Co" mark on the back of the spoon to identify it was made by Rogers and his son after 1865. Consult a professional if you are confused as to the probable age of the spoon.