Search within the Beckman Historical Collection
You searched for Creator Metcalf, Edi Remove constraint Creator: Metcalf, Edi Format Image Remove constraint Format: Image Date 1990 to 1999 Remove constraint Date: <span class='from'>1990</span> to <span class='to'>1999</span>
The photographs document birthday celebrations. The images are numbered, but the subjects are unidentified.
Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH meter in 1934 and…