Just knowing the manufacturer of the apparatus, i.e., Sanford, Young Fire, Foam-mite Childs, International Harvester, just to name a few would put the person in the right ball park. Looking at a fire book I came across the Buffalo Fire Appliance Corp. that stretched the wheelbase of a REO speedwagon to make a small triple combination For Kenilworth, NJ. in 1926. Quite a few have come and gone, including American La France.