For your interest, an obverse/reverse scan of a small hoard of cob/macuquina and milled coins that I collected recently in Bolivia. Some repaired holes and likely some fakes... http://farm3.static.flickr.com/2241/2147849166_e515d34c76_b.jpg http://farm3.static.flickr.com/2371/2147055333_885979db55_b.jpg