Jimmycoin

How do I post pictures? I haven't got a clue

I will get some pictures and post them soon thank you.. Is there any way of telling if the coins are real? One of them was so brittle that it broke in 2. I have been told to see a specialist but I don't know where to start

And a number of one yuan notes if anyone can help

I have a few old Chinese bank notes one of which being a Shanghai 1930 50 customs gold units. Does anyone know a value of these?? I also have many coins that range from 600 years BC to mid 1900s how do I tell if they are real or fake and if real a value of these. I appreciate any responses thank you for your time