Detective Comics #305 - Published July 1962

Two bank robbers force two aliens stranded on Earth to give them the secrets of a Z-Ray, which kills by delayed action, and use it against Batman and Robin. However, the aliens trick the crooks by altering the killing ray making it harmless, so that the Dynamic Duo can capture the criminals, who become overconfident in the use of the alien weapon. After the crooks are captured, the aliens return to their home planet.

5.0 Grade - An average, second-hand, obviously read copy with marks and minor defects but still respectable and appealing. Printing lustre almost gone but not soiled or heavily stained and no tape evident, apart from a small piece of magic tape to repair a tear. There is noticeable wear on the spine and even the start of a spine roll and one staple may be slightly loose. The pages may be yellowing with the first signs of slight browning at the edges. The cover could have a tear or crease or the centrefold could have come away from the staples inside. NO PAGES OR PARTS MISSING. It must be complete in every way. For British comics, all the above applies though there will be slightly more edge and corner wear.