This shows the stamped marking of this CD 638 "clone" I don't know the assigned U-number, or if even one already exists. The marking and "model number" is also similar to that on various glass CD 638s.

The symbol is identical to that shown on this PS-70E suspension, from the same manufacturer. [id=136725849]

The symbol, which looks like a cartoon of a fish, is the Cyrellic letter equivalent to "Yu" as in Yussif or Yugoslavia. It is a combination of I and O morphed into one letter... The letter whch looks like "y" is the Cyrillic equivalent to the letter U, pronounced like "oo" as in the word "boot"..