09-02-2007, 08:23 PM
OTK is a quality check marking. From what I remembet, the number is controler's ID number.
If an item has also GOST number (state standard), it can give some info on manufacture date - GOSTs for certain items changed from time to time, and the last two digits indicate GOST's introduction date, so eg. if on boots there's a number ending with 78, it was most likely manufactured between 1978 and 1991, when new GOST for boots was given.
If an item has also GOST number (state standard), it can give some info on manufacture date - GOSTs for certain items changed from time to time, and the last two digits indicate GOST's introduction date, so eg. if on boots there's a number ending with 78, it was most likely manufactured between 1978 and 1991, when new GOST for boots was given.
