Angelo Testa (1918-1984) studied fine art at the Chicago Institute of Design and went on the start up his own textile company in the late 1940s, catering to many architecture firms in the area.
IBM Disks, produced 1950-56
Cities, c. 1950s
the internet tells me this sold at auction for $1,530. Pricey little pets.
This is one of his metal sculptures valued around $4000-$5000: