Volvo PV 445. Not sure about the bodywork, could be made by Ringborgs, Valbo, Grip, Gladsax or such. Many small companies made convertibles, pick ups and small delivery vans on the Volvo chassi. Volvo made these chassies 1949-62. The sales were pretty slow and in 1953 Volvo had so many unsold driveable chassies that the company decided to start to produce a delivery van in-house. That was the starting point for Volvo Duett aka PV445 and P 210.