These should be listed Silver Age - (I suspect they are not because somebody erroneously changed the age when adding a Facsimile variant):
| Amazing Fantasy, Vol. 1 | #15 |
|---|---|
| The Amazing Spider-Man, Vol. 1 | #14A |
| The Avengers, Vol. 1 | #9A |
| Batman, Vol. 1 | #181A |
| Fantastic Four, Vol. 1 Annual | #6A |
| Strange Tales, Vol. 1 | #115A |
| Uncanny X-Men, Vol. 1 | #5A |
These should be silver age as they all fall just before the cutoff (April 1970)
| Silver Surfer, Vol. 1 | #12A | |
|---|---|---|
| Silver Surfer, Vol. 1 | #13A | |
| Silver Surfer, Vol. 1 | #14A | (Currently listed as Modern) |
| Uncanny X-Men, Vol. 1 | #64A | |
| Uncanny X-Men, Vol. 1 | #65A | |
| Uncanny X-Men, Vol. 1 | #66A | (This is the last original story and last Silver Age book) |
These are Bronze age books misclassified as Silver or Modern
| The Amazing Spider-Man, Vol. 1 | #150A |
|---|---|
| Daredevil, Vol. 1 | #132A |
| Iron Man, Vol. 1 | #52A |
| Marvel Feature, Vol. 1 | #1A |
| Silver Surfer: The Ultimate Cosmic Experience | |
| Spider-Woman, Vol. 1 | #1A |
| Uncanny X-Men, Vol. 1 | #94A |
| Uncanny X-Men, Vol. 1 | #94C |
| Uncanny X-Men, Vol. 1 | #101A |
| Uncanny X-Men, Vol. 1 | #129A |
| Uncanny X-Men, Vol. 1 | #132A |