This fun photograph (or postcard it looks to me) was posted by The Sherman Museum on their Facebook page. The Sherman Museum, located in Sherman, Texas, wrote:
Throwback Thursday to Pool Manufacturing! This picture, taken in the 1940s, shows workers working on the variety of clothing the company made. They ranged from work shirts to dress shirts, which included brand named “Swetpruf” work clothes and “Colortest” dress shirts!