This is a Z-gauge (1:220) model of a Great Western Railway Loriot L (G13). It includes a sprue of wheels (8-spoked) and provision for fitting a coupler of some kind - just a flat area behind the headstocks. There are scrapes in the underside of the floor to use when fitting the axles in, and grooves below the pinpoint sockets to reduce the amount by which is is necessary to flex the body to get the axles in - which will take some care as noted for the models of the same wagon at other scales.