safety cab or a professional bodywork conversion offered to the agricultural sector at the time. Bus versions As well as making the 12-seater bus, Martin Walter produced another version called the Farmer's Model Utilabrake, which had two front upholstered seats, but plainwood slatted seats arranged along the sides of the rear part of the body. For a little comfort, pvc backrests were supplied for the longitudinal seats, unlike in the 12-seater Work Bus which was designed for rough usage and did not have this comfort for its occupants. Other interesting conversions of the 15 cwt were special PSV (Public Service Vehicle) models which were produced by Martin Walter and Kenex. The Martin Walter model was the Utilabus PSV, which could be obtained with both side and rear doors or merely a rear only. To comply with the then-current PSV regulations it had a raised reinforced plastics roof panel in order to achieve the required headroom. Vertical grab rails were provided at the rear, the seats had the necessary spacing, and a bar type lifeguard was fitted below the side of the body between the wheelarches. The Kenex company offered two models which complied with the PSV regulations: the Kenebus 12-seater and the Kenecoach for 11 passengers. The Kenebus had longitudinal seats and a bar type separator for the driver's compartment, while the Kenecoach used transverse seating and had a panelled divider to keep the passengers from bothering the driver. Kenex also offered their own version of the ordinary 12-seater light bus without PSV certificate of fitness, this being the Kenebrake if supplied with upholstered seats, or the Yeoman if fitted with wood slat type seating. From a distance, the Kenex PSV types are distinguishable by their lifeguards, which are made up of solid panels as opposed to the slat type of Martin Walter models. Motor caravan conversions The Thames van was also instrumental in helping the motorised caravan or campervan to establish itself in a period when people were extending their horizons with regard to holidays and camping. The Ford Thames 15 cwt van formed an ideal base for a motor caravan because it could double as an ordinary vehicle during the week and be used for picnics or breaks away from home at weekends. Its roughly square shape lent itself well to conversion to a caravan, as many people had noticed when they saw the estate car and 12