Sample of casein plastic
1920-1960
Forty six samples of casein pinched-rod formed by compression moulding of sheet material showing the range of colours and effects achieved
Samples of casein showing the range of colours and effects achieved
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960
1920-1960