Dating rca victor records
Their three main (others in Terre Haute IN, Pitman NJ) pressing plants were based in Chicago, Nashville and New York, and are identifiable by the stamped in prefix to the number in the deadwax: The job numbers which follow the ZTSC, ZTSP, ZTSB codes were allotted out of the offices in the Fisher Building in Detroit, and were often allocated in batches.
Columbia Special Products Detroit office was first located in the Fisher Building during the mid '60's.
Petersburg, Russia, where the first "Gramophone Record Red Seal" discs were issued in late 1901 or early 1902.
In 1986 CBS changed its sequencing by abandoning the four digits system and introducing a new, seven digit system.
Catalogue numbers now started with 65, followed by a four digit sequence and finishing with an added digit indicating the format.
Orders taken by the office would then be sent to Columbia's Chicago studio to have the master lacquer (acetate) cut, which would then be forwarded on to the plant in Terre Haute.
Stereo 45 matrix numbers from NY/Hollywood always bore a 'ZTS' prefix; Chicago used 'ZCSV' prior to 1969, and 'ZTSV' thereafter; Nashville's stereo matrix prefix was 'ZSSB.' EP releases bore the following prefix codes: ZTEP = New York/Hollywood; ZTEC = Chicago; ZTEB = Nashville.