It's hard to see but the bottom of this 1 in tall owl appears to have a hallmark one looks like a c inside of a circle can't make out the other. I think this is silver it appears to be able to be shined up but I don't want to loose the patina. Does anyone know if it's a hallmark on the bottom of the base of this owl, and if it is a hallmark possibly where it's from and value, thank you