Quote:
Originally Posted by yomass
I am sorting through a few 1969 Topps baseball sets and notice that the backs can be either (1)a vibrant white and pink or (2) a dull off white and salmon. I used to think they all started with the same vibrant back and the off white backs resulted from age, heat exposure, or other environmental factors but now I am not so sure. I have many "used" G-VG cards with vibrant backs and many near mint cards with off white backs. The off white backs seem to outnumber the vibrant backs by about 5:1.
Are the cards printed on two different stocks? Can anyone shed light on this?
Has anyone opened a wax pack or vending box recently and noticed the condition or color of the backs?
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I think Topps routinely used two different stocks, one that stays white even 50-60-70 years later and one that tones. Not sure if the better stock was early print runs, raks, etc or just random.