Share '2007 "Red Brick" Reprints'

Does anyone have information on National Geographic Reprints from 2007.  I was unaware that any were reproduces after 1975.  I had assumed that I had a complete 1964 set of "Red Bricks" but have just discovered that my Volume I, Numbers 2, 3, and 4 were all produced in 2007.  This is an image of the bottom of the inside, back cover: It appears that these reprints were only done for Volume I, but…