The sawdust on the box was pointed out and also gave me some concern about authenticity. But there was a raft of such material at this time, so they could well be genuine. I wondered whether anyone had just seen them as a set before, or had come across them in any reference literature. My literature on such material is almost non-existent. They were pointed out as being "shilling" size, but I have asked the contact for any more information they could provide. The planchet style/size look similar to some of the spade guinea/hanover tokens