This one is tiny, even smaller than a CD 100 "Surge". Very faint embossing (in Cyrillic) EC3 46 (ESZ 46). SZ stands for Steklo Zavod (Glass Plant) . E is for Elizovo, so the name would sound like Elizovo Steklo Zavod, or Elizovo Glass Factory. I have another of these with a date code of 59, apparently these were prodced between 1946 and 1963.