on 10-05-2015 09:25 PM
on 10-05-2015 09:34 PM
on 10-05-2015 10:14 PM
As suggested try Googling (or searching eBay) for square pattern coins.
https://books.google.com.au/books?id=NUg1HUZt5OEC&pg=PA44&lpg=PA44&dq#v=onepage&q&f=false
on 11-05-2015 04:09 PM
Unofficial fantasy pattern. See my answer for the whale-coin with numeral "3".