Bayer Ceresan enamel sign with thermometer, around 1935
agricultural advertising sign, with advertising for seed dressing, on a white background the view of the Bayer Leverkusen factory with logo and the inscription "der richtige Weg zur Sicherung gesunder, voller Ernten ist die Beizung mit Ceresan", flanked by a large ear of wheat and hands with seeds, to the left of the illustrations is a thermometer mounted from behind, age-appropriate, used condition, back and edges with strong traces of corrosion, especially at the lower edge, enamel defects on the edges and on the cover of the thermometer, 42 x 42 cm (HxW)