What childplay and teaching-aid modelling product did William Harbutt devise and produce in 1900, in an old flour mill near Bath, UK?
Harbutt’s Plasticine Ltd Plasticene Harbutt Newplast Plastocene Plasticine
harbutt s plasticine ltd plasticine plasticene newplast plastocene harbutt
plasticine
WikipediaEntity
Plasticine