The exhibit gives a rare glimpse into the women who worked in the Caterpillar offices by day in payroll , the mailroom or in administrative roles -- .
The exhibit turned into some of the greatest softball players in the world by night .
The exhibit gives a rare glimpse into the women who worked in the Caterpillar offices by day in payroll , the mailroom or in administrative roles -- and turned into some of the greatest softball players in the world by night .