This important Bronze Age issue is written by Steve Englehart and drawn by Dave Cockrum.  Cover by Ron Wilson.  This story is continued from Avengers #129.  This issue features the origin of Rama-Tut, Hawkeye joins the Avengers, Mantis is revealed to be the Celestial Madonna, and Swordsman dies.  These square bound books are always tough to find in high grade, and with the black cover it is even harder.  There are only 35 copies in the CGC census graded higher than this one!  And there are only 47 copies graded 9.4 NM like this one as of the date of this listing.  So the book is not plentiful.  As we mentioned, this book is graded 9.4 NM with white pages by CGC.  The alignment is nearly perfect, the color is great, and the spine is square.