Since 1961, we have been one of the UK's longest established horsebox manufacturers, coach-building horseboxes from 3.5 ton to the HGV transporter range. Today, since the semi-retirement of Mr Watkinson Jnr, we finished building our own boxes, but bring you the Overlander 3.5ton Horsebox as it is curretly the only small horsebox built to JSW's usual quality standards.