The Chiltern Model Railway Exhibition 2020       Stevenage Arts & Leisure Centre Lytton Way Stevenage SG1 1LZ   Saturday 11th January 2020 - 10am till 5.30pm. Sunday 12th January 2020 - 10am till 4.30pm.   Organised by the Chiltern Model Railway Association (CMRA).   There will be more than thirty superb working model railway layouts with a well balanced coverage of scales, gauges and prototypes. An excellent selection of specia