This time it's a NOS 5/8 bengal round point but what is interesting is that it has an unusual shaped blade where it meets the tang. Roundpoint as well ?.
The bonus is that it has true ivory scales. Tested with red hot pin, no melting or marking at all.
Some of that typical rusting / pitting stuff on the spine but not deep or heavy. This one should clean up nicely. Full concave etc etched on the blade.
Original price on the box of 16s 6d
I'll post a pic tonight.

Gary