BROADWAY LIMITED 6646 HO UNION PACIFIC FEF-3 4-8-4 NORTHERN PARAGON 4 RD#840 August 18, 2026 By 0 EQUIPPED WITH PARAGON 4 DCC AND SOUND. Synchronized Puffing Smoke with Chuff Sound. Variable Puffing Smoke Intensity and timing. Integral DCC Decoder with Back EMF for Industry Best Slow Speed Operation in DC and DCC.