Locate the manufacturer’s mark on the back of the item. Look for the name "Wm. Rogers" prefaced by the date "1865," which identifies a piece made by William Rogers around 1865.
Look for "Wm. Rogers" surrounded by a star and an eagle, which identifies a Rogers piece made between 1825 and 1841.
Look for the company name "Wm. Rogers Mfg. Co.," which identifies a piece made after 1865 by William Hazen Rogers and his son, William Henry Rogers. This manufacturer’s mark also was later used by the International Silver Co.
Look for the "Wm. Rogers and Son" name followed by an eagle, which identifies a piece made by William Hazen and William Henry between about 1856 and 1861.
Look for the "Wm. Rogers and Son" name, which identifies a piece made by William Hazen and William Henry between about 1861 and 1871. This manufacturer’s mark was also later used by the International Silver Co.