Its a question that will probably have a few different answers but at the moment i have a GB Paris safe its approx 20 16 20 .IT as a stuv lock fitted and weighs around 200 kilos Ime thinking of another safe some thing a bit older may be 60s. not old i know but i want it to be secure against physical attack And from some of the older safe it looks like it would be very easy to cut in to with a chisel or to destroy with a sledge hammer . OR have i got it wrong as when i have inspected the stuv it looks vulnerable to being punched out to me. Or would just break through and jam the lock please say it would . So then it needs to be similar size and weight whats the suggestions