Ever had a discussion along the lines of "I have this old specimen, but it has no labels so I am not sure of where or what it is?"
Most of us have and the mystery sometimes never gets solved, we have quite a pile here, which sometimes has a happy ending when a match or research turns up an answer.
Here is a good example of never trusting old labels 100%, even if they are genuinely attached to the specimen.
This fine Swiss fluorite and stellerite has a long label heritage with matching collection numbers stating it is from Binntal.
It came to us from Peter Uerpmann's collection, via Georg Gebhard. Gebhard has obviously seen a problem and has re-attributed the piece as being from Gibelbach also in Wallis but in the next valley over, about 5 miles (8Km) away.
We are pretty sure Gebhard's notation is correct, and after around 100 years the information updated.
Just one of those interesting things!