I've included a scan of the front and back cover plus an interior photo of each magazine so please check them out.

Here's a nice set of Kull magazines from Marvel/Curtis from the 70's.  Issues 1 is one of the nicer of the old Marvel mags that I've run into over the years while 3 is a little more banged up.  Here's a breakdown on each one:

#1 - NM- when you run your finger along the spine you can feel some slight rippling, that'd be the glue used on these.  The spine does have a few faint stress lines along it, more visible on the back.  The side edge of the back cover has a few faint lines/creases.  There are some faint finger bends/lines on both sides.  Off-white pages.

#2 - VF the spine has a few tics that break colour. There is some light rippling from the glue on the spine and some faint creasing/lines.  the front and back cover has some finger bends, light lines on it. There is a faint crease/line at the bottom edge of the front cover.  The tip of the bottom edge on the back has a little bend.  White to off-white pages.

#3 - Fine the spine has some tics that break colour.  There is a small split at the top spine corner, the bottom has a little tear.  There are some light lines, indents, finger bends on both sides.  The corner edges of the back cover have multiple creases/bends.  There is a small colour break at the bottom edge on the front.  The side edge of the back cover has a little tear.  White pages for the most part, one corner edge has it's tip folded over and some of the creasing is visible on the top corner edges.  

Ultimately these grades are my opinion of the magazines so if you have any questions about them please don't hesitate to ask, I'm usually fairly quick to respond.