I hope that the inside of the mould isn’t as grotty and corroded as the rest. It looks as though the two halves don’t meet well, so you will get a lot of flashing.
From what I can see of the bullet shape it reminds me of the Rapine Maynard Smith bullet, but I don't think its's one of their molds. Lee 6 cavity handles work on many molds and are cheap enough to modify. I guess clamp the sizing die in a vice and tap the soft bullet through with a wood dowel.
