Hey I have a chafing dish I would like to know more about. It has a detachable ivory handle and metal top, and inside it’s divided into three sections. The part with sections can be removed from the bottom of the dish. From my research I believe this to be from the period of George III because of the gadrooned borders but I’m not sure. It has 5 hallmarks on the back but the last is mostly worn off. It seems to be a face facing to the right. The other hallmarks are as follows from left to right: a crown/leopard’s head or something of a similar shape, a strange item I cannot describe well, a P, and then the G and likely duty mark. All hallmarks are spaced the same amount apart.
I am not sure if it is silver-plated or real silver, and this is primarily what I would like to know. I would like to also know the percentage of silver it is if it is silver. It weighs 2185 grams without the ivory handle. Thanks in advance for any help.