A question that has bothered me for decades, is most all Erfurts I have had the privilege to examine in my lifetime were stamped on the toggle with a broken crown like the photo example I have posted.
But I have seen a few where the crown was unbroken, and there doesn't seem to be any chronological sequence to this mystery...
Do any of our historians have a clue about the history on when the Erfurt toggle stamp die got broken, and replaced? And why they continued to use the broken die?
Speculation (in lieu of knowing the real story
) is perfectly welcome, but I would really like to know the real story if it has been documented.