Los Angeles Division Bringing local model railroaders together in Los Angeles and Ventura counties.  2013 NMRA Pacific Southwest Region LA Division L.A. Coupler We are now making previous issues of the L.A. Coupler available. 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.