I'm currently selling vintage lego sets on ebay they are unused and complete with boxes, everything is in good shape. Right now there is 3 auctions but I will put up a few more the next few days, mainly the Esso station and some building sets and perhaps an old airplane set. These are truly rare and if you are a collector you should definately have a look.
If you are interested please have a look at ebay and search for "vintage lego 306" for example.
or follow this link:
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Best regards Gabriel Wallden