Sample card of coloured casein
Sample card of coloured erinoid casein. The card contains 46 circular samples in various colours. The card is printed 'BP chemicals' in the bottom left, and the B.P. logo in the bottom right.
3 (three) samples cards of coloured casein printed with B.P. logo, probably late 1960's
Sample card of coloured erinoid casein. The card contains 46 circular samples in various colours. The card is printed 'BP chemicals' in the bottom left, and the B.P. logo in the bottom right.
Sample card of coloured erinoid casein. The card contains 48 circular samples in various colours. The card is printed 'BP chemicals' in the bottom left, and the B.P. logo in the bottom right.
Sample card of coloured erinoid casein. The card contains 49 circular samples in various colours. The card is printed 'BP chemicals' in the bottom left, and the B.P. logo in the bottom right.