So does that mean if it for example below after the most recent date it means sport seats front and rear????
243 sports seats, front and rear (с 01.12.1986)
elimination of battery (с 01.01.1964 по 31.08.1971)

How about this one does it mean anything on this car??????????
261 special parts warm air intake against carburettor icing (с 01.01.1961 по 31.07.1966)
elimination of model designation V12 (с 01.11.1973)

Just trying to understand what they each mean to me. Will some mean absolutely nothing on this car???
Thanks Dave