Regarding the Bengal, I believe Cast Steel was often stamped on older blade, and based on the smile and wedge grind, there is a chance that blade might be quite old. A short, stubby tail is often another sign of an older blade. Should be a great shaver.
I've shaved with two different Temperites, one was a wedge (#60, i think) and the other was a full hollow (#40 maybe?). Both were fine shavers. As you may (or may not know), Case makes the Red Imps, which seem to be quite sought after. I found my full hollow Temperite was quite rigid when shaving, with little flex if any. The wedge version was very similar to a Red Imp 132.
I think I have seen a few Bowdin's wedges around; the name seems familiar for some reason. But, I must concede, I don't really know anything about them.