We should have the book in the museum.
Interesting - this kind of hat seems to have been used some time.
Given that the Hochdorf one is the earliest it runs from
Ha D1/D 2 to Lt A.
I don?t know ecaxtly how the stelea from Hirschlanden (with the same hat-form) dates, but it should be Ha D2 (compared to the "narrow" dagger).
So we get ca. 550 BC up to 464 BC, roughly 100 years.
Astonishing, if you bear in mind that the fibulas changed every generation...
Thomas