Hey, through this link (http://mittanobrazo.imgur.com/all/ ) you can see some simple pictures I took of an amp that once was my father's. He had told me this story that some friend of his changed the textile in front of the speaker because of gigs and the fear of steals. Well, a long story short, tonight I opened it up and I don't really know what to call it. After some rudimentar research I found very much similarities with this http://www.voxshowroom.com/uk/amp/ac15-1960.html . In fact they're identical, only the pots are different (I found the pots on this one http://www.voxshowroom.com/uk/amp/ac15cont.html ).
If somebody could get me on the track, knows the exact model and year, and the original speaker that was in, it would be of great help. Of course I'm willing to take more detailed pictures.
Thanks for your help!