You couldn't make it up- the parcel was sent from the "wrong" centre to another one, marked as out for delivery, and then sent back to the first "wrong" one!
Well, the little box contains an instruction sheet, a small sprue of resin parts (the fuselage plug, two copies of the instrument panel add-on and the actual FuG 350 gadget), the clear housing over the top, and a full set of decals.
I must admit, I'm quite happy.
The instructions show where to place the IP add-on, as well as where and how big to make the hole for the fuselage plug, as well as how deep it must be inserted.
I got carried away and did that- next step, undercoat and paint.
The eagle-eyed among you will see the cream resin part on the IP, and the plug just behind the canopy (a simple round resin dowel).