Archives Catalog Entry
PH meter, Model G
Model G, serial number #143220 (in lid; lid is detached). Manufacturer: Beckman Instruments, 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.
Beckman, Arnold Orville (Chemist, Inventor, Philanthropist)
Jan. 1, 1957
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