Help identifying mark on lidded pot...?

Hi - It would be great if anyone can help identify the mark on this pot found deep in my mother's cupboards. She collected pottery from the UK and NZ (as well as making some of her own), so it's likely it's either a UK potter from the 50s or earlier, or NZ from the 70s onwards. Many thanks!

Could be Harry & May Davis either Crowan pottery Cornwall UK or Crewenna Pottery Nelson NZ

Ah - I think you're right - my mother lived in St Ives and had a pottery gallery around the same time that Crowan Pottery was in Cornwall, so very likely this pot is from that era. They might have even met! Thanks very much, appreciate it.