HAND PAINTED POTTERY BOWL ~ ITALIAN ? MEXICO ~ ?

I love this bowl and would like to know something about it. I took it to the antique show and had it appraised to see where it came from and what it is. They couldn't tell for sure because the signature was damaged during the firing. The signature appears to begin with Rue...... Pueb..... and can't tell how many letters are in either name. I thought maybe it was Pueblo but is nothing like Pueblo Pottery. It is hand painted and a little primative in the glaze. There are no cracks or chips and is definitely pottery. I would love to know what it is. The appraiser thought it might be Italian. Anyone know??