The listing, Truetone Television Instructions has ended.
Truetone Television Instructions eight pages total. Not see a date, but guess to be in around 1950's. Appears to be instructions guide to help service repairers to figure how to make adjusts or a help in repair. The second page with headings list Tuner Alignment Procedure, RF and Converter Adjustment, Oscillator Adjustment.The instructions show on several pages different illustractions. The illusrations can help in repair to look at where a part should be.