The open doors in these rooms depict different office spaces within the Barber-Colman Company in Rockford IL. Note the operator's switchboard in the photo's left portion.
Midway Village Museum
5" x 7"
“Barber-Colman Offices.,” Midway Village Museum - Digital Collections, accessed December 3, 2022, https://midwayvillagemuseumdigitalcollections.omeka.net/items/show/2377.