Can anyone help with this? It is a rather large and tarnished bowl. Not sure if plated or not, but it is not magnetic. It has these 3 marks on it that I can’t really make out. The second one looks like a crown inside a shield and the third is something in a diamond, maybe a head.
https://i.imgur.com/OCh4wDj.jpg
https://i.imgur.com/SnhkxtY.jpg
https://i.imgur.com/z7pN5pu.jpg
Anyone recognize or have a suggestion? Thank you.