I have bought collars and pins from Fritzsch KG in Germany, info@fritzsch-kg.de
I think they have loads of surplus Adler bits and pieces that follow the Victorinox pattern give or take tolerance here and there. From memory of another thread, I believe there was an agreement between Victorinox and Adler.
The EBay seller name is fritzschkg
Search EBay for 2,25mm rivets using a comma as the decimal separator, not a stop as used in the U.K. and USA.
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