Hello everyone, Very interesting website. Although not a collector of ordinance per se, I do have an interest in military related articles. I've hopefully attached photos of a steel box obtained while I lived in the UK. I've searched but I've been unable to find any reference to the nomenclature on this box and am wondering if anyone knows what exactly it contained. The container is 27 1/2 " x 8" x 8" and the only markings on it are, as I hope you can see, bmb C263A mk I 1943. The 6 could possibly be a G. Any input on this would be greatly appreciated! All the best!