Columbia Recording Studios, Chicago

One of CBS Inc.'s ownership of Columbia, the label's Chicago studios were situated wherever the network's radio and television stations (WBBM-AM/FM/TV) were located. Prior to 1956, the studios were located at the Wrigley Building, then after 1956 they were located at 630 North McClurg Court. Also referred to as "CBS Studios, Chicago".

The following matrix prefixes indicate 'Mastered At' Columbia Recording Studios, Chicago:

ZTSC - 7" 45 RPM Mono
ZCSV - 7" 45 RPM Stereo prior to 1969
ZTSV - 7" 45 RPM Stereo after 1969
ZTEC - 7" 45 RPM EP Mono
XCTV - LP 33 1/3 RPM Mono
XCSV - LP 33 1/3 RPM Stereo
ZCTV - 7" 33 1/3 RPM Mono