Caught the end of the break. Nice looking cards. Some of the parallels like Gadreau and Beneiers YG were 07-08 retros. The Matthews is one of the Collectors choice cards, that is part of a three piece puzzle (see image below). Thanks for breaking.
Other sets inspired by the past include 1997 Collector’s Choice Commemorative and 1999 History Class.
Appreciate your interest but he plans on keeping it. The kid is having a good start to his collecting career. First Mechjo16 pulled him a case hit Julio Rodriguez and now in his second break Mike pulls him a Beniers Young Gun.