This is another contribution from Ray Baer. (Thank you Ray) It shows the company with $14 million sales in 1964 progressively growing to $45 million in 1973. The company stock was traded on the American Stock Exchange under PYC. Read the detail in
HERE
The black center above is due to the reflection of scanner. It is actually a shiny aluminum plate embossed with words, Polychrome Uvimer, Flexomer as you could see inside in color printing.