Cheshirebrickbrothers

Hi, New to the community. We're a family of Lego fans. I'm in my 40s and my children are 10,9,9 we live in the UK. Whilst we have all sorts of Lego , I prefer trains and classic sets from the 1960s. I especially like the 1:87 vehicles. My reason for joining today was to get some advice on a vintage set I have just bought, but will have to wait until I get approval for the full site. But if anyone is interested . Today a local auction house was selling some classic sets , I believe they originated in Norway in the late 1950s. The set I bought was set 306 , but instead of the usual VW beetles it contains 2 green Opel kapitans. The inner card seems vintage and the cutouts are an exact fit to the Kapitans. Has anyone else come across something like this? Firstly I'm trying to establish if the cars are Kapitan prototypes, the chassis has Lego Kapitan and 1957 on the underside. The bodies are loose to the chasssis and painted green . The bodies have glass and 1957 mounded to the inside. Secondly could this 306 actually be a prototype box and contemporary to the Kapitans. trying to set up Flickr hopefully upload some pictures later. We have a bricklink store: cheshirebrickbrothers