Issue 5 of the swedish Agent X9 this year will run a Secret Agent X9 (Agent Kelly in Swedish) story by Mel Graff from 1952.
But... now let's see what you have to say about the artwork posted here:
The adventure begins on February 16 with Wilda (Anne) giving birth to Philda (Paula) and the strip is signed by Graff. On Feb 22 Phil (Paul) says to Wilda that he's going away on a mission.
Then between Feb 25 and April 5 the strips are unsigned. And it's two of thise you can see above. Then on April 7 we are back where we left off on Feb 22. Looks like this is one of the fill in stories that Paul Norris did. But since I'm no expert on Norris style it woild jut be fun to see if anyone can confirm that this is one of his stories.
Before leaving the subject of Secret Agent X9 I have to show you these two panels from the sequence that ends this adventure. What you see are aged versions of Phil Corrigan and Wilda. :)