Silver Trinket Box - How old? Sterling?

I have a silver trinket box. There are no markings on it, however, it appears to be sterling or coin silver. The top comes off and there is a small area to put a ring inside. It weighs one ounce on my postal scale. Not sure if I should polish it up or leave it as is. Does anyone know how old this trinket box is by looking at the filigree design? Any info would be great.
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