These are Japanese steins from the 1960s, possibly distributed by Hachiya Brothers Company (see Stein Marks. Japanese pottery is a lot lighter than German pottery. Also the Germans use a pin on the thumblift and the Japanese use a bolt.
Here is the Hobo stein with the Kent (U.S. importer of Hachiya Brothers), eBay #141698726303. It has a sticker identifying it as Japanese ,but they are easily removed. This shipping is probably more than its worth.