Large numbers of these coal wagons were built for the SER during the second half of the 19 th Century. This kit is based on Drawing No. 773 dating from 1883. No earlier drawing exists, but photographic evidence suggests that very similar wagons were built at least 20 years earlier. By the 1890s the design was enlarged and updated, but many of these earlier smaller wagons survived into Southern days. From the 1890s they were used as general purpose open wagons, not solely for coal.