This is based on the Yosemite Valley Railroads 30 ft flatcar. There were a total of 30
of them aquired in 1905 and 1906 but they were not consecutivly numbered. They were numbered 1 thru 5,
9 thru 31, 35, 37, 39, 43, 47, 51, 55, 57, 551, 552, 554, 556, and 557. IMPORTANT! Please read the README
file in the folder. This car has options.