Photos show everything. Not sure the age, but obviously very, very old. I believe the body and the receiver (?) is cast iron, possibly steel. You can see that the latch works. It requires a key (not included) to lock it open or shut. I assume one can be made. Not positive what is involved in doing so. The overall weight is 1 lb. Looks like it was painted, as you see. An awesome collectible or usable piece, for sure.  Photos show the true condition. Please look closely and be sure to ask any questions you may have.