It does look very similar and could well be Peltier, and not all Peltier's have distinct feathering. My first impression was Peltier, but I can't rule out Akro either. Have a look at the Akro slags as well.
Thanks - I see what you mean about the crispness - it's exceptionally well defined (and very gorgeous whatever it is).
I think I see what you mean - there could be pontil evidence at that pole?
I think see where you mean - about 11 o'clock?