Esschert Design - Barometer/thunder glass with cast iron

Thunder glass with antique rust brown cast iron classic Victorian holder. 14 x 13 x 28 cm. Thunder glass, one of the earliest barometers and very EDUCATIONAL, also for adults. The operation is simple. At high pressure, but also in sunny weather, the water level is pressed down into the spout. At low pressure, such as with clouds and rain, the water level in the spout rises. In an approaching storm, the water level rises so much that it can overflow. Including syringe for easy filling and dye ink powder for coloring the water. Volume: approximately 0.5 liters only fill with bottom. Packed in printed gift box. TIP: thunder glass can also be ordered separately without cast iron holder