Clean lines of cream-colored brick and floor-to-ceiling glass panels define the Charles S. Beardsley Research Laboratory, a gleaming mid-century modern addition to the Miles Laboratories campus in Elkhart, Indiana — the company best known at the time for Alka-Seltzer and One-A-Day vitamins. This chrome corporate postcard captures the building's austere institutional confidence, a lone young tree staked in a manicured lawn, the Miles Laboratories medallion crest centered on the façade. It's a quintessential piece of American industrial boosterism from the era when corporations proudly mailed postcards of their own facilities. The card was sent by a woman named Marie to her brother in Girard, Ohio, writing cheerfully on March 13, 1967, that she'd been in Elkhart for the weekend and wasn't sure if she'd make it over for Easter — signing off as "Big Sis in Indiana."