Matchbox - Photos! Photos! Photos!
I very rarely run across any type of 'error' in Matchbox and most of them have just been packaging type mishaps like this upside down Superduty.
2019 Matchbox Metal #47 MBX Rescue #10 Ford F-550 Superduty (error) by Milton Fox, on Flickr
Feel free, to post up any others you may have run...