If you mean the dot pattern on the can, I believe that that’s halftoning, which would let a black-and-white newspaper print something other than black-and-white images. I’m not familiar with the process, but my guess is that the way that probably worked was that Larson sent in something with a flat shade of gray and then the halftoning was generated digitally for it and anything else that used shades of gray on the print side.
If you mean the dot pattern on the can, I believe that that’s halftoning, which would let a black-and-white newspaper print something other than black-and-white images. I’m not familiar with the process, but my guess is that the way that probably worked was that Larson sent in something with a flat shade of gray and then the halftoning was generated digitally for it and anything else that used shades of gray on the print side.
ah, that makes total sense; cheers.