Mayflower 400th Anniversary US issue vs. Royal mint issue variation?
Received an email offering from MCM for the Royal Mint issue of the Mayflower set and it mentioned on email that the US Silver issue will have a marking on the edge. I verified this on the Royal Mint website and they call the marking "London hallmark of quality". So that is how to tell them apart if the US medal is from the US set or the Royal Mint set, am I correct?
Here is a sample of the picture with edge marking from Royal Mint (picture from MCM).