Vintage outlets Weighted Sterling Silver Salt and Pepper Shakers

This is a beautiful pair of Victorian style sterling silver weighted salt and pepper shakers with glass linings. They are "weighted" so not 925 grade silver. Elegant tapered design with ribbed urnings, 4.75" tall. Each had a few black spots on the side that were removed so they shine beautifully and would grace a dining table or display shelf very well. They were made by the AMC silver company and marked as 287 on the bottom. I believe outlets they were wedding gifts to my parents so 1930s.