I have one of these. The first figure is the tip opening in 1/100th of mm. Mine is 210/2 and measures .082" which is very close to 2,10 mm. I assume that the 2 is a medium chamber.
This is my "sales talk": (.082") Classic Super 210/2 Stainless Steel Made in Czechoslowakia. Very slender piece with bullet chamber. I got this in a trade and didn't expect much, but what a surprise. Plays easily from top to bottom. The lows are warm, dark and full. The highs are bright but not too much."
It is actually surprisingly good. I see them once in a whil on ebay in Germany. Last one had surprisingly many bidders, so they must have a reputation.
This is my "sales talk": (.082") Classic Super 210/2 Stainless Steel Made in Czechoslowakia. Very slender piece with bullet chamber. I got this in a trade and didn't expect much, but what a surprise. Plays easily from top to bottom. The lows are warm, dark and full. The highs are bright but not too much."
It is actually surprisingly good. I see them once in a whil on ebay in Germany. Last one had surprisingly many bidders, so they must have a reputation.