Greetings, I recently acquired a tea set from an auctioned storage unit that also included some valuable antique European jewlery and an elaborate German china set. This tea set includes the tea pot w/ bowl, a sugar pot, 6 saucers, and 6 cups. The bottom of each piece is stamped with a matching designer stamp and a series of numbers and letters. On the bottom of one of the cups there is the matching designer stamp but also a stamp reading "MADE IN USSR" I am seeking any information anyone may have on the stamp itself and which company it belongs to and just the rarity/peculiarity of a Sovient Union made tea set. Thanks in Advance! Photos Attached.