This building housed the Tebala Shrine Temple for the Masonic Order, including several related organizations.
The description states:
This building is known as the Tebala Shrine Temple which houses the local A. A. O. N. M. S., Star in the East Lodge, A. F. & A. M., Crusader Commandery, White Shrine and other Masonic Orders. The auditorium seats 1735 persons. This temple is used for many musical and theatrical productions and civic gatherings.
–The lengthy abbreviations refer to the full names of the respective Shrine organizations. This building appears to be no longer in use, as the Tebala Shrine website points to a much newer building to the east of downtown Rockford.
This postcard likely dates from the 1930s.