Source: PCC Series Bridge Training, Module 3b, Slide 3
The Place of origin in this series example has changed. Since the 370 is repeatable, you can list each associated place with the dates separately for clarity. If the place has not been established, you do not need to establish it. But do input in the way the heading would likely be established.
|370||‡g Chicago (Ill.) ‡s 2002|
|370||‡g Omaha (Neb.) ‡s 1989 ‡t 2001|
|643||‡a Chicago ‡b Windy City Pub. ‡d 2002-|
|643||‡a Omaha ‡b Heartland Press ‡d 1989-2001|