Based on SER drawing No. 552, this open wagon was built in large numbers from the late 1870s into the 1890s, before being superseded by versions with angle-iron end-stanchions. Features include: external diagonal strapping, wider tapering end stanchions, 3-rib buffers with 12” metal heads, single push-rod brake and tarpaulin bar. Most of the wagons were running in SE&CR days, when the ends began to be cut down. Quite a number survived into Southern days, though we don't know what numbers still had the round ends.