Thae wasps must have some teeth, look what they did to that screw pillar. Nasty.
Shortly after I bought my B&O box, I opened it up to replace a broken volume control cord that B&O use to take the linear motion of the volume slider to the spindle of the conventional (rotary) volume control and which often would snap in these when the original silicon grease - that the sliders move in - dries off.
As I removed the screws, all yielded with the characteristic crack that signifies that they've never been turned in the other direction so it hadn't, at this stage, been pulled down before which is how to this day I have no idea how the Durex found its way in there.
Fortunately, it was an unused one and still in its individual packet. Sadly, it was two years past its sell by date. According to the writing on the packet, it was a strawberry one, I didn't attempt to research this point further!