Dean Nickel It looks like it wouldn’t be too hard to make a key. It would be like making a key for a push key padlock I would think. You build a stack pick and then once you have it picked and turned a bit you fit the key.
macs_07 Hi Halflock - yes I realy meant no original key - It is one of those projects that I will get around to one day. A key will be quite easy to make especially as it is quite easy to dismantle.