As someone from the former capital of Raetia ;-) I might add "Since then, at least 116 similar objects have been found in Austria, Belgium, France, Germany, Hungary, Luxembourg, the Netherlands, Switzerland and the United Kingdom"

PS: Still humbled and amazed to find my small hometown of Cambodunum (70k people) on maps of major Roman roads like

https://latin4everyone.files.wordpress.com/2017/09/roman_roa...