Sub-Mariner #1 is the premiere issue of Subby in his own solo, ongoing series in the Silver Age!  This key book continues the story from Iron Man & Sub-Mariner #1 and includes the origin of Prince Namor, the Sub-Mariner.  This book is graded 9.4 NM with white pages by CGC.  Alignment is excellent.  The scan has a little glare from the scanner but that is not a book or case defect.