Wednesday, January 20, 10:31 PM -
Collection - Antique - Art
... the reagents, a glass plate and an envelope to house absorbent ... standard lead solutions 0% Diphenyl-carbazone ... 10% 1:2:5:8 tetrahydroxy-anthraquinone Beryllium, magnesium, aluminium & boron 20% Thoron 1 ...
£59.99