IS stands for Inlaid silver. ie Holmes and Edwards have a full line of Inlaid silver, which is major improvement over silver palte and the IS is stamped on each piece, usualy in a square box stamp
The "IS" silver marking on flatware stands for "International Silver Company". The flatware is silver plated. Visit the link below for details about other silver markings too.
99.99% of the time it is Plated, once again it is not silver. the only flatware that is made of silver will say on it somewhere STERLING
International Silver Co. according to the website antiquesandthearts.com
International Silver Company, founded in 1898 from a number of smaller silver manufacturers that specialized in silver plated tableware.
IS stands for the International Silver Co. and unless it says sterling or 925/1000 it is silver plate.
International Silver - the company that took them over in 1898.
IS stands for International Silver (Company). FB Rogers, Wm Rogers, and Rogers Bros. (or Rogers & Sons) were some of the American silverplate manufacturers that were combined into the International Silver Company in 1898. The IS mark indicates the flatware is silverplate, rather than sterling.
Inlaid silver has two definitions. It is can be used to refer to a metal that is coated with silver. It can also mean a piece of silver that is embedded in another substance.
Plated. 1847 is the year Rogers Bros. was founded and is part their hallmark; it is not the year your flatware was manufactured. The IS (International Silver) stamp indicates you have silver plated flatware manufactured after 1898. Silverplate has no scrap value. For more information see Related Questions, below.
Holmes & Edwards inlaid silver is really just silver plate and does not have a high value.
The Rogers Bros. silverware is silver plated flatware. IS means your set was made after Rogers Bros. was acquired by International Silver Company, around 1898.For more information see Related Links, below.