This looks similar to Gerz mold 213, a 2,5 L relief pouring stein showing a king and his knights. The neck of your stein does differ from the one shown on The Beer Stein Library. You can also view in the old manufacturer’s catalogs under Reading. The ebay listing is missing the lid and it appears there is a hairline in the handle. Are there any markings on the bottom of the stein? The listing is in Great Britain, so shipping to the U.S. or other foreign country can be expensive.