Hello alfa55
Sorry I cannot identify your part! But it looks as though Alan has sorted you out.
Cees,
you must persuade Mark G to send you some photos of his mosi fuselage slice incorporating his panels. It really is a magnificent piece of work! 😀 And just for reference, the fuselage mould technique has worked out very well, info has been passed to Mark, and I’m awaiting its first flight sometime next year!! :p