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Optical
Lens Tester and Trial Lenses, ca. 1935 Purchased
by Dr. Cliff Palmer along with a medical practice in Lethbridge, from
Dr. A. Ashdown Marshall of Calgary. The trial lenses became obsolete
with the introduction of new equipment that had the various types of
lenses inside. These lenses were then used by Dr. Palmer when he did
examinations on the Indian Reserves as a backup.
Donated by Jean Palmer |