Tree Trunk Silver Candleholder Help

Friends-
Please check out this 2-1/2" candleholder. Believe its silver but can't find a mark for it. Designed as a gnarled, naturalistic tree trunk base. There's a tiny touchmark inside a lozenge-shaped reserve with what appear to be the letters AB. As I'm writing this I discovered another tiny indentation, this one in the shape of a flower (it has a scalloped edge). Not sure but it looks like a head in profile facing right. I'll try to take a picture of it later but think it's too small for my camera to get a good image. Any thoughts? I know it's banged up but it's so neat I want to give it a little attention. Thanks.

 

Is your other mark here? Austria-Hungary Hallmarks • Online Encyclopedia of Silver Marks, Hallmarks & Makers' Marks

~Cheryl

 

Thank you, Cheryl! I do believe it's the Diana's head mark circa 1872-1922. That is definitely the cartouche shape. I'm stoked to know. Now to work on the AB. Appreciate it!