When Dad finished his PhD in pharmaceutical chemistry in 1951, he went to work for Eli Lilly, a large pharmaceutical company which was instrumental in providing insulin for diabetics. At some point Dad got a series of pictures depicting the early history of the company. I never saw the pictures before, so I don't know where or when he got them. They were tucked away waiting to be found I guess, and that happened on the day I worked on cleaning out his office.
Obviously the company grew MUCH larger.