Identifying/Selling Antiques?

So my moms friend has a ton of antiques she wants me to help her sell and she will give me some of the money. Frankly though the stuff is hard for me to identify because its so old and from all over the world. Any advice on how I can ID this stuff and its value?

Here's a pic of two items. The one on the right is a handcrafted instrument from Russia.

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u gotta ask the russian peeps. whats that even called? its at the North Star.