ABG? Pottery mark?

Hi there, new here!
I've got this little vase, about the size of my hand, thats got the marking "ABG". its a cute little vase, my mother in law thinks that its been done in some sort of special glaze, and I've been trying to find the artist. Does anyone recognise this work? Sorry its a little scratched up. Also note, its definitely ABG, i've seen the similar ARG on this website, but theres a clearly defined B on this one.
Thanks in advance!

Hi there, this pot has been Pit Fired and the colours and variations have come from using that technique to fire it.
Could you please press Baking Soday into the potter's mark and scrape off the excess.
It should leave a clear and easy to see mark