Soldiers operating an issued equilibrator in a medical research laboratory at the Aviation Field in Mineola, New York on April 16, 1918. The equilibrator was used for measuring and analyzing balance and coordination of military personnel. This photograph is marked for official use.

---

Size: 8446px × 5749px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., .., 111-sc, 111-sc-32908, 16, 1556, 16/18, 1918, 32908, 7/18, activities, adt, american, april, au, aviation, equilibrometer, field, issued, laboratory, medical, military, mineola, official, operation, photographer, photographs, research, secd-june, tases, war, world