Silver Planet was one of six sleeper-dome-observation cars built by the Budd Co. in 1948 for the California Zephyr, operated between Chicago and Oakland by the Burlington Route, Rio Grande, and Western Pacific. Silver Horizon, Silver Penthouse, and Silver Solarium belonged to the Burlington; Silver Sky to the Rio Grande; and Silver Crescent and Silver Planet to the WP. A sixth car, CB&Q’s Silver Lookout, arrived in 1952. Classic Trains collection
