Decals for Hinckley & Schmitt wood, spring water tank cars in white, are available in O-scale (set # 118).  Model Railroader described how to scratch build this car in the March 1955 issue, and reprinted it in Easy-To-Build Model Railroad Freight Cars, Kalmbach Publishing, 1971.  Here’s your chance to scratch build a car toward your NMRA Master Model Railroader with detailed instructions and decals (the authors hand-lettered the MRR car!).

The decal set includes “The Water Co. Chicago” herald, several road numbers, and capacity data.