Commando Comic #298 'Desert Monster' (1967)
 
“No, Herr Hauptman, I have not been out in the sun too long. With my own eyes I saw it…it had six sides, as many guns as a pocket-battleship and moved like a great crab at about one hundred kilometres an hour. A tank? No, it wasn’t a tank. It was more like a monster…”

And after that report from a badly-frightened radio operator came into Nazi HQ, a wave of fear swept the desert. What was the Thing that struck from the shadows like a prehistoric beast? Only four men knew…and they were all listed as dead!
 
One Comic for Sale in Fair to Good Condition