These two vintage Lego town base plates would have been produced from 1986 as the borders on either side of the road feature 7 studs as opposed to the older, 9 stud variant.
 
The road markings on each of these base plates show a 90-degree bend with a solid white centre line.
 
Both are in excellent condition, with no scuffs on the smooth surfaces.  The printed road markings are all intact.