Little tiny brass Object(think it is button or badge)

[treblehunter]

Hard to say what it is, seams like the metal I was thinking was hoop in middle is iron or steel?? It is rusted there, also looks like there was possible paint on the one side. I don't know was hoping someone might know what it is

 

[QUICKSILVER (appletree)]

could also be the back plate off something