I'm trying to identify a lego set only knowing the color, shape of in inner package. The inner box is blue, dimensions are 18 x 11 x 2 3/8" and 9T plastic compartments, There is a 1984 Lego Catalog included. Tried to include a picture but don't know how to do it here.
The only 1984 set with corresponding dimensions seems to be 6080 King's Castle but I can't find any picture of a possible inner tray; and that's even assuming it had one (the box picture on this classic-castle forum post seems to point to the contrary).
There's another good candidate in 1985: 6392 Airport, but again I can't find any pictures of the box.
1983 brings us 6980 Galaxy Commander for which I can't find pictures of the inner tray either (but there's one on eBay where the seller promises pictures in the near future); 7824 Railway Station is close too but it's a bit too short I had it and I don't remember it having a blue tray (I'm fairly confident it was red).
Sets containing at least 100 pieces made in 1983 or 1984 would be my guess as to where to start searching...