Image received from Jamea Gibson, Missouri, USA at 3-July-97
|Obverse:||Legend of Ch'ing dynasty coin Dao Kuang T'ung Pao (1825-1851 a.d.).|
|Reverse:||Shantung province mint mark|
In the centre hole mounted green gemstone, probably jade.
That item looks very nice, I don't hear about such items earlier.
I think that it was done for amulet purposes.
By the way, coin was found in Jamea's back yard.