Union Pacific Ca-4 Caboose #3880 Built originally in 1944, Ca-4 cabooses were made specifically for use by the Union Pacific. The simple yellow scheme with no U.P. logo is proper for the era of the mighty Big Boy. Lighting Smoke Unit SKU: 6-81840 Dimensions: Length: 10" Gauge: O Gauge price: 89.99 year: 2014 rail line: Union Pacific Minimum Radius: O31 Scale: Scale Catalog Year: 2014 Road Number: 3880 Die-cast metal trucks Hidden uncoupling tabs Separately applied metal underframe details Smoke with On/Off control Detailed and painted interior with figures <b>NEW Feature</b> Interior LED illumination with ON/OFF switch Manuals Find the latest manuals in our support section. Replacement Parts Buy any replacement parts in our support section. Contact Contact a service station to fix your product