pH meter, Model G
1957
- Title
- pH meter, Model G
- Collection
- Caltech Images Collection
- Series
- Scientific Instrument Photographs
- Identifier
- ST-BE-20
- Dates
- 1957
- Extents
- 1 photographs
- Abstract
- Serial no. 143220 (in lid; lid is detached). Manufacturer: Beckman Instuments, Inc., 1957. Similar to ST-BE-18. Original case is formica with lid (detached, no hinges or handle); lower door missing. With original instructions inside lid, dated January 1957.