It is impossible to find these early Actions in high grade so it is no
suprise this is the second highest graded copy. As a bonus it has two
ads for More Fun #52 (first Spectre) which, of course, you can't see
because the book is CGC'd. Sorry!.
The holy grail of comics!!!!! This is one of the best known certified
examples for page quality. Approximately 75-100 copies of this first
appearance of Superman by Joe Shuster and Jerry Siegal are still
believed to exist.