Land Rover series 1 one 88 & 109 RHD steering box 1955 1958

Genuine Land Rover series one steering box 31" total length, (4 bolt fixing) 88" & 109" RHD recirculating ball type steering box, fitted to the series 1 land rovers between 1955 - 1958, this is not the later type series 2/2a box, it is approx 1 1/2" shorter than the series 2 type.