Production Fault?

[Live&LetDieCast]

Hi to all.
First time on this forum and would be very grateful for a little advice. I am in the process of selling a few diecast models one of which is a Matchbox No.23 VW Campervan. It appears that the panel for the windows has been put in the wrong way round. It looks like the rivets are intact so could this be a straight forward production fault? I'm not sure if this makes it more or less saleable and desirable? Any help would be very welcome.
Thanks
Ian

[motorman]

Looks like a straight forward factory error piece, although the baseplate on these campers can be relatively easily popped allowing for interior swaps etc. I wouldn’t put any additional value on it personally, however there are a few collectors who like error models and may pay a little bit extra for a nice example.

[Live&LetDieCast]

Thanks for that Motorman. I wasn't sure if it was later changed to increase value. Thanks for your advice.