I took a look for the following set and couldn't find it, but I'd love to see it on the registry:
Marvel Minus One Flashback Month Issues (1997)
Issues in the set would be:
Alpha Flight v2 #-1 (Flashback) (1997)
Cable v1 #-1 (Flashback) (1997)
Daredevil v1 #-1 (Flashback) (1997)
Deadpool v2 #-1 (Flashback) (1997)
Elektra v2 #-1 (Flashback) (1997)
Excalibur v1 #-1 (Flashback) (1997)
Generation X #-1 (Flashback) (1997)
Ghost Rider v2 #-1 (Flashback) (1997)
Journey Into Mystery #-1 (Flashback) (1997)
Ka-Zar v3 #-1 (Flashback) (1997)
Peter Parker, Spider-Man #-1 (Flashback) (1997)
Silver Surfer v2 #-1 (Flashback) (1997)
The Amazing Spider-Man v1 #-1 (Flashback) (1997)
The Incredible Hulk v2 #-1 (Flashback) (1997)
The Sensational Spider-Man v1 #-1 (Flashback) (1997)
The Uncanny X-Men v1 #-1 (Flashback) (1997)
The X-Men v2 #-1 (Flashback) (1997)
Thunderbolts #-1 (Flashback) (1997)
Untold Tales Of Spider-Man #-1 (Flashback) (1997)
Venom – The Seeds Of Darkness #-1 (Flashback) (1997)
What If… v2 #-1 (Flashback) (1997)
Wolverine v2 #-1 (Flashback) (1997)
X-Factor v1 #-1 (Flashback) (1997)
X-Force v1 #-1 (Flashback) (1997)
X-Man #-1 (Flashback) (1997)
Thank you for the consideration!