Operating Era: 1909-1950. Atchison, Topeka & Santa Fe, Santa Fe Refrigerator Despatch. Between 1909 and 1918 Santa Fe installed about 5,000 41'3" "standard length" truss rod reefers. RR.Q and R were built before safety appliances and so lacked ladder grabs on the ends and a grab and step on the left end of the side. RR.Q had 5 side grabs, RR.R had 7. Both had Bohn ventilators. These classes were upgraded in the late 'teens or early 'twenties. RR.S was built in 1913 with safety appliances but retained the interior stiffeners (as seen by corner bolts) of earlier cars. It was also the first class to use double truss Andrews trucks and Santa Fe curved ventilators. RR.T was built in 1915 with exterior corner braces. RR.U of 1917 and RR.V of 1918 were the first reefers with the herald switched to the left end of the side. In 1920 the herald was reduced to 36" and in 1926 the reduced ARA lettering was introduced. In 1930, car color changed to orange sides and ends with black roof and underbody. This changed again in 1939 to black ends. All of these lettering and color changes are covered in the appropriate kits. Over the years cars needing repairs had their ventilators replaced with standard hatches. Our modernized kits cover these versions. In 1936 20 cars were switched to brick service. Dirty cars were simply stenciled Bx-25 in white paint. Numerous cars both with and without vent were transferred to ice service where they ran for many years. PLEASE SEE OUR MOW AND CABOOSE SECTION FOR OTHER #10800 SERIES KITS.