I suppose these would qualify as my latest purchases. All four are ACCURAIL covered hoppers. The three ribbed sides are renumbered with the Accurail decals. These are really fun to build. These would have hauled grains or minerals on the D&RGW. Some of these are still in service, with different reporting marks. These were build in 1974, by Pullman Standard. The 15595 is/was built by American Car and Foundry in 1973.