Ifor Williams Box Trailer. The item “Ifor Williams Box Trailer” is in sale since Sunday, August 16, 2020. This item is in the category “Vehicle Parts & Accessories\Car Accessories\Trailers & Towing\Car Trailers”. The seller is “wesley7109″ and is located in Stoke-on-Trent. This item can’t be shipped, the buyer must pick up the item.