I picked this up at an antiques place the other day. At the time I bought it just because I liked the look of it (I was not thinking ex military at this time). However, once home the more I looked at it the more I thought it resembles an ammunition crate of some kind. I could be barking up the wrong tree here and looking on the internet I have found nothing that resembles the locking device. The closest is a ww1 german ammo crate. If anyone has any opinions it would be appreciated. It is not in the best condition but I am not too bothered. There are no markings only holes where carrying handles possibly fitted.