Silver Plate Rogers

What is the IS mark on Rogers silverware? All 1847 Rogers Bros silverware is silverplate, which consists of a very thin layer of silver over a metal base made from copper, nickel or brass. Pattern: Daffodil (Silverplate, 1950) by International Silver. Actual: 1950 – 1973. Chest and all utensils. Large serving spoon: 1. Large serving fork: 1. Small sugar spoon: 1. Missing from original set: 1 butter knife and 2 dinner forks. Added pieces to set: gravy ladle, Large serving spoon, large serving fork. Condition: Overall Excellent- some patina loss/silver damage on a few pieces. It was 1 teaspoon and 1 soup spoon. Case has some dings but overall in really good shape. Note the black paper on underside of box is starting to flake off. Weighting just over 9 lbs. Box size 17.5″ x 11.5″ x 3.75. All items in the listing is included except the last photo. It is an example of the flatware in a box. I got that photo off the internet. You can print it out if you need it.