RSN - do you mean the Swiss magazine?
Schweizerische numismatische Rundschau = Revue suisse de
numismatique = Rivista svizzera di numismatica
Except for 2014 and 2015, these are ALL online in excellent
quality,
freely downloadable as they should be and not grabbed or "protected" by some elitist organization in the US which believes it has the right to block everyone who is not a member of their little group.
They are rightly and freely available from the Swiss websiteSNR on e-periodicaand
SNR on e-periodica (early volumes)1. Click on the second link.
2. Scroll down to Volume 6 (1896)
The Imhoof article is in two parts in that volume.
3. Click on the pdf icon to the the right of the first "overall" title in the left-hand window (not an individual chapter name),
save it to your HD.
4. Click on the second "overall" title in the left-hand window
save it to your HD.
5. Open it in your pdf reader and check that it has the plates. otherwise go back to that e-periodica page, scroll down to the bottom, download the plates (Planches) then use something like Acrobat or Foxit to stick everything together.