Ifor Williams box trailer In good working order with roller rear door front access door good wheels and tires ready to go. The item “Ifor Williams Box Trailer” is in sale since Saturday, March 16, 2019. This item is in the category “Vehicle Parts & Accessories\Car Accessories\Trailers & Towing\Car Trailers”. The seller is “bobsbag” and is located in king’s lynn, Norfolk. This item can’t be shipped, the buyer must pick up the item.