Los Angeles Division Bringing local model railroaders together in Los Angeles and Ventura counties.  2013 NMRA Pacific Southwest Region LA Division PSR Dispatch/L.A. coupler Archives The PSR dispatch is a quarterly publication that has news and information pertaining to all divisions within the Pacific Southwest Region. We are now making previous issues of the L.A. Coupler available. Latest issue of PSR Dispatch L.A. Coupler Archives Latest issue of L.A. Coupler The L.A. Coupler is the quarterly publication of the Los Angeles Division of the PSR, NMRA. In each issue you will find articles and information not only about L.A. Division news and events but hobby tips and other items of interest.