Without any sort of additional information this seems like just random assortment of colors author happened to like. This sort of article would be much more valuable if it had information how the specific color values were produced.
Pantone inks in specific, and printed colors in general, don't convert precisely to RGB. Ambient light reflects off paper to your eyeballs; a screen beams light into your eyeballs.
It's a nice little nostalgic thought exercise, though.
The pictures on the Wikipedia article show several shades of green: https://en.wikipedia.org/wiki/Continuous_stationery
The inks probably might have changed over the decades, so it might look different than genuine '70s paper. But on the other hand I'd imagine there are literal tons of green-bar paper sitting in archives from various times and sources if you want to do some archeology