I think thus might be an unlisted version of a 1908 specimen case.
It seems to match type six with a maroon case, blue satin? and purple velvet. But the there is no lettering on the outside of the case. I'm pretty sure the coloring is maroon, when compared to a red 1911 specimen case.
I was thinking that maybe someone combined two cases to make one, but text does not match any of the other 3 versions in charelton. The feel of the leather and inside work matches the 1911 case and comparable photos. I saw two other photos of the same style case in a colonial acres auction and a Geoffrey bell auction, so there are other examples.
Does anyone have more info on this? Maybe left out of charelton for space reasons?