'Collosol' tannic acid spray, boxed, with ampoule, by Crookes Laboratories Limited, Park Royal, London, NW10, England, 1931-1940. 'Collosol' tannic acid spray 1931-1940
'Collosol' tannic acid spray, boxed, with ampoule, by Crookes Laboratories Limited, Park Royal, London, NW10, England, 1931-1940. 'Collosol' tannic acid spray 1931-1940
Pump and air cylinder from Sass's compressed air spray by Down Bros., English, St. Thomas's St. Pump and air cylinder from Sass's compressed air spray by Down Bros.