Russian style sidecar on a Harley WLA

[Slava]

Hi,
I'm Russian but I can't say anything useful to you. I'm not shure but suppose Russians putted sidecars of later after-the-war production kinds. If so there were non-production aftermarket rebuilds that made locally without any standard parts. Although I'm not a Harley specialist but can note there aren't many survived WLA's overhere and info about them also.