Paper - pH Indicator, 1-11, Riedel-de-Haen, circa 1900. Made: Riedel-de-Haen A.G., Used in the pharmacy of a mental health hospital in Victoria Australia. The paper is used to measure the acidity or alkalinity of a solution.

Physical Description

2 rolls of pH indicator paper in enclosed plastic reels. Accompanied by 2 manufacturer's instruction booklets. Contained in plastic bag.


Example of laboratory equipment used in psychiatric hospitals in Victoria Australia

More Information