There is an archive for many magazines we offer on united-kiosk.de. You can find a lot of older issues from the last years there, that you can simply choose from and order as an epaper single issue.
It can happen, that individual archive-issues aren't orderable anymore. This can have license-legal reasons or is based on declarations to cease and desist that the publisher received.
You can find the archived issues easily on united-kiosk.de when you press "go to the archive". The page jumps down a bit to the older issues.
Please keep in mind that the usage of the archived issues is not contained in an epaper subscription. The start of an epaper subscription can't be in the past as well.