When the Upjohn Portage Manufacturing site was being planned
in the mid-1940's, it was important to make sure every
manufacturing process
would actually fit inside it. There were no
computers in those days so the planners had over
5,000 small models of equipment and people created from
metal, wood and plastic. They literally modeled every production process in the building. At an estate sale in 2019, I found a
representation of a Building 41 Upjohn packaging line using
those models from the 1940s. The piece of wood you see is 13
x 6 inches and it has a plexiglass cover. This is not an
official company model used in the 1940s but one
created by a company craftsman as a personal memento of that era.
The full story of the Building 41 model is at this link.