Hi Gary, Both Wagner and Griswold made a variety of different kitchen utensils....spoons, scoops, juicers, butter/cheese slicers, etc., etc. I can't help you with the manufacturer of your masher, but I use one almost just like it, and it is my favorite potato masher. Come back often and ask all the questions you want...we will try to get the answers for you.
Scott
Here's my cast iron Potato Masher.....