hello,

1.

In reverse also has the two circles...

2. the engraving is arms Coat of city " zamora" in spain : http://es.wikipedia.org/wiki/Zamora

maybe those two circles were later .. the playboy bunny seems ..

The strange thing is that it seems a casino chips of early twentieth century but its material and drawings of the circles (they look more current) could be in 1960 ----

thanks