Close-up, Part I

Over the years I have gathered a lot of original art for inspiration, and to study how my favourite artists worked/works. So why not share it with other people by scanning it in color, in high resolution so that the fine details can be seen?
Let's begin with a 1967 Bob Lubbers/Bob Lewis X-9 daily from Bob's final episode, before Goodwin and Williamson took over the strip. Enjoy!
(Click on the images to super size them.)

And a bonus: Two sketches from the back of the strip.

PS. While you are waiting for the next post in this series, here's another daily posted in 2010:
Frank Robbins 1969