NorbertBell I have tried more to find the manufacture time of this box. But I can not find it. I am little confuse that It is box or not. I know that Christensen had manufactured corp etc. I hope that You will show its whole photos . So We will get exactly idea about it.
Dean Nickel It is a metal box with a lock and a bolt handle above the lock. From the pictures I would guess about 20 inch square. I may have a line on this container.