Color postcard showing the interior of the gymnasium with patients exercising at the Battle Creek Sanitarium. Caption on front: BATTLE CREEK, MICH GYMNASIUM - B.C. SANITARIUM Written on back: Am spending week end at the Battle Creek Sanitarium Some time Wish you & family were around I'd love to have you as my guest for dinner. Bernice Sent on: [illegible] 3 1911 Sent to: Mr. Elmer Guinwell, 352 Park St. Detroit, Mich.