1950s LEGO found in box from vacation house

Found 7 sets, extra bricks and a whole lot of flyers 2 sets of 700/4 Lego System 1 set of 700/4 Lego Mursten, System i leg 1 set of 700/6 Lego System 1 set of 210 (K?) Lego System 1 set of 1210 (K or 5?) Lego Mursten, System i leg 1 set of Lego Mursten, System i Leg (unknown set number) I most sets are complete, some is nearly complete. Can anybody tell me more about these sets?? Are they as rare as I think they are and does that mean money? 😂👍🏼 Cheers submitted by /u/birksigurd ...