These are the 4 inch Stegmaier coasters. The three scarce 4 inch Steg coasters can be viewed on page 2 of the photo gallery. Some may look like duplicates, but they are different manufacturers. It seems that Steg and some other breweries had different manufacturers produce the same advertising in the late 30’s and early 40’s. A few of the Steg trays of that vintage were made by different manufacturers. If anyone knows why they did this during that period, I’d like to hear from you.