Here are my two Greens Centenary mowers. One is restored without a box and the other in original condition with original box. I bought the second unrestored one as I needed a grassbox pattern for my first one. The creation of a box won't be easy to replicate exactly as the small metal scrolls where the wooden sides fit are quite complicated extending as one piece of rod across the entire length of the box encased in a bifold at the bottom of the box. I've enclosed photos to explain. This original example cuts the lawn like a new one.