Pottery Bowl.. Signed..but by who ???

Hi all,
I really like this bowl. (and never thought of it as just another "art class kind of piece"). Have never been able to decipher the siggie.. 7 1/2" W




Thanks...janette

 

It's a little hard to make out because the color of the inscribed area is the same color as some of the background. Perhaps in hand it's easier to see or perhaps if you put something into the inscription (powder?) it would be easier to make out. As it is, it looks sort of like Auw or Huw TB but could be so many things, Huro, Auro, Arrio, Hirro, Airro, Hurio..TB, 73, 713 T13 etc. Sorry I know that isn't very helpful.

I was going to guess Japanese but have no reason why. There is a famous Hiro potter in Japan but this doesn't look like his other online pieces.

I sort of see this.

 

Thanks ! I had tried the powder..but as piece has rough texture..all over..powder just does not work..!!! I can say that "in hand" I do concur with TB and possibly Au--
I fear this bowl will remain a mystery...but I enjoy it ! PS--It is not truly "round" but four sided with sides higher in centers..