Vintage 1920s / 1930s German Natr. sulf. sicc. (dried sodium sulfate) glass apothecary bottle with stopper. The label is actually a form of enamel which is fused onto the glass permanently. This gives the label a very nice dimensionality, like an old enamel sign. Extraordinary quality for a otherwise ordinary medicine bottle, a beautiful combination. Good condition. Sodium sulfate in dry form (siccatus), was historically used as a laxative.
