WOW!!! it turned out to be a B-4. That will be an exellent bass. From your description,it sounds like all the parts are from the proper materials, indicating that it is original,and correct. Was the serial number on the end of the fingerboard? I have seen one other Epi that did not have any serial number that I could find. I wonder if that particular bass may have had a replacement fingerboard installed at some previous time. I think, from the serial number, of this one compared to the numbers on the ones I have owned, we can asume that yours is from much before 1951. Regarding the damage, I dont think the scroll will be much of a problem to repair, the top damage makes me wonder if the bass bar has come un-glued or is broken. Could this bass been used or even just brought up to pitch with no sound post or bass bar.? That could result in this kind of damage. Hope you can find a qualified bass luthier on your area. Without seeing the damage, it is hard to make recommendations, but I think saving the original top should be priority one... To the best of my knowledge all Epi bass models were the same size, which is slightly smaller than other three quarter basses......Keep on pick'in!!!!!!