From the Archive:
Okay, I've found another book that mentions the "bosom ring" - it says that Victorian English women would go to France to get their nipples pierced.
This book is from the same era (1970s) as the other book that referenced Victorian nipple-piercing. It does not contain any direct quote from a first-hand source, but it does footnote where this bit of info came from:
a GERMAN text from 1912.
And even that is not a primary source - it is referencing ANOTHER GERMAN article.
So I have yet to find a primary source document!
Wouldn't it be funny - since this seems to stem from a German article about English and French women - if this were all a bit of pre-war propaganda on the part of the German press?