An old thread, but still "prövar jag min lycka i lotteriet ..."!
I would be very interested to buy also a copy of "släpkärrä 1922" manual; regardless if the copy is original copy or scanned copy *smile*. So, nickname "rymdskunken", please contact me in this matter; of course if someone else has such manual for sale, all contacts are more than welcome.
If someone has also information about the possibilities to register this trailer also public roadtraffic according the new EU-directives, or even the Finnish national regulations, all information would be highly valued. I have a dream to get this trailer to be registered, possible as a "museum piece" like my tgb1314 has registered in Finland. Of course that registerstatus hinders all major modifications to tgb vehicle or trailer but if there is not modification or custom building intentions, the whole concept of "museum registered vehicle and vehicle combination" could be nice alternative due to the much lower insurance fees.