I have seen a few of these coin's go up for auction, sometimes they are listed
as reproduction's at other time's as authentic and sometimes the person listing
them is not sure.
I have found myself stumped by them, they all have one thing in common and it's
this flaw of Three circles that sort of look like three Cherry's from a slot
machine. The mark most offten appears on the reverse of the coin and so far I
have seen it on Groats and Sixpence's with the sixpence being more common.
The possible ideas I have is that it's a die flaw, but I have no idea what
would cause that, air hole's from casting or a counter mark. I have not been
lucky enough to get one yet, as when I have bid on them I have been going with
the idea that it's a very good reproduction and bid according to that
assumption, so I have not been able to make a close examination.
I'm hoping someone here can give thier thoughts on this as I'm still on a very steep learning curve and have a tendency to second guess myself.
Here is a link to one of the most recent ones I have seen go up for auction.
Link
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=8343090297&rd=1&sspage name=STR\
K%3AMEWA%3AIT&rd=1
Also here is a picture of another one from awhile ago.