date these Zenith brochures?

[wkand]

The first brochure looks to be 1965. They say 16 years of color, then use the 1949 closed circuit example of their color tv success. They also talk about how their color compatable sets waited until hey could perfect the art.

1949 + 16 = 1965

I have no idea how to date the other brochure, except from the 40 years of Zenith mentioned in it. If their first radio sets were in the 1925 range, that would also be 1965 or 66.