It seemed - as none of their writers spoke Japanese - to be a single publication featuring original fiction based on both Columbo and Space: 1999. You can read the article about it together with some clearer pics of it by clicking here.
It should be pointed out that there isn't any discernible crossover of the two universes but it didn't stop me imagining one...
(Apologies for the picture of Olive from On The Buses in a filthy bikini. It's merely provided for historical context.)