It looks like I asked the question in the right place!
I've already learned its not a double but a Cape Gun, and info on different 9.3 calibers. The gun is hammerless, 16ga. is right bbl and it has scope mounts built into the top of the bbls.
I just called the owner. It is a 9.3x72R, Model Cape, S/N 5xx. Mfg. name is unreadable.
I'll have a friend down there take pics and sent them to me. I will then post them here.
I use a .50 Alaskan lever for Brownies in the brush. If I buy it, I probably won't use it unless I go back to Africa.
By the way, I post on Accuratereloading as TJ.