You can use an antiquing furniture wax making sure to get some old looking buildup in the crevices. If you don't like the result it can be wiped off. It’s a pretty mirror!

Amaco Rub n Buff comes in several differnt colors and is easy to use. Can be purchased on Amazon.

Thanks Emily I tried using that with other mirrors but I encountered a couple issues. It won't stay like it comes off rather easy but could be I had already placed some acrylic paints on the mirror. Second issue is that rub and buff while pretty because it gives a luster I'm actually trying to sort of deluster the mirror.

Thanks mojavemaria ill try the antiquing waxes