What LEGO set do these numbered bags of pieces come from? I found these bags in the attic any idea what LEGO set they belong to?



They are numbered 1, 3 and 5, but I don't know if they all came from the same set or not.
These bags don't seem to belong to any specific LEGO set.

First, they are filled very sparsely. Normally LEGO bags are filled with more elements than that depicted here.

Secondly, in bag #3 we clearly see a Plate 6X6 W. Bow in medium lilac:



And a Right Plate 3X8 W/Angle in bright yellow:



But these two parts have never been sold in the same set. These contain the lilac plate, and these the yellow plate.

So the only remaining possibilities are, in order of descending probability:


The bags have been opened and the contents changed (possibly resealed later)
These are not genuine LEGO products (but the bags do have "The LEGO Group" printed on them)
Someone at a LEGO factory has made a grave mistake