ALK127

Hi- just finished a rebuild of an early Stihl TS350 saw. Guy at my local Stihl dealership said that Stihl started making these saws in 1978. Does anyone have access to the early model parts diagram or service manual. I have found the parts and owner's manual for the later model (1990's) on the internet but can't find anything on the earlier model. Would just like to have it for reference. Thanks