Ok' here's a new Parachute question: what year did ESTES Change from the Checker Board Chute's with the Rocket in the Circle, to the Checker Board with the Circle with ESTES Industries Logo ?

I do know that 1964 was the first year for the printed Parachutes with the rocket in the circle.
and by 1968 the chutes had changed to the ESTES Industries logo, but when was the change ?

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Neal Miller
Master Blaster NAR# 58296