This is a wee group of mid-century Scandinavian dessert plates.
They date to the 1960s and were made by Rorstrand and designed by Sigrid Richter (as annotated on the base).
I love this pattern - which is called Eden, and it features a large stylised sliced blue apple. The apple is surrounded by oodles of little abstract green leaves.
They are all is in very good vintage condition with no chips or cracks - they all sadly have very light scratches to a few areas of the surface, and confined mainly to the area of the right-hand side of the blue apple - you can hardly see these and only if you tip the plate to a raking light and look carefully - this is reflected in my reduced price for these - they still all display well and the scratches are confined to the surface glaze and not the pattern.
I have taken some real close up images of these issues for your inspection (the scratches look much worse in my photos and not so noticeable on the plates themselves).
These plates are highly collectable and my price is a fair one for this most sought after pattern.