looking to exchange for world coins by kilo

Hello every one
I am intrested in exchanging coins by the kilo .
I have mixed greek coins from the 1950-1960-1970 -1980-1990 s
the kilo may include multiple same coins , that are circulated which i can offer .

I am looking to exchange a kilo of greek coins with a kilo of coins from any country of the world !!
I am also willing to do half kilo if any one is intrested.
If any one is intrested please contact me . Thank you . yiorgos