Please help with identifying this bowl

[ashaw]

I've had this bowl for over 20 years and it was given to my by my grandmother who had it for some time. I don't know anything about it and have had some offers to purchase it, but do not have any idea of it's value. I've seen similar bowls for $50, $550 and $5000. Could you please give me some information on it and, if possible, if it has value? Thank you for your help

[peterp]

This is at the most a few decades old, and the interior of the foot indicates that the porcelain body was not handmade.