Packaging junkie: 'Plasticine'

I am a sucker for a nice bit of packaging, and this week paid over the odds at £2 from a charity shop for some old plasticene that I don't need.... but look at the box!

 I was immediately drawn to the retro palette and typography, and from deciphering the roman numerals on the back it looks like it dates back to 1977. I also absolutely love this tiny illustration on the back. Worth every penny!