Here is the cover of Serbian magazazine Mika Mis 86.

Yesterday's cover contained the following text according to Vuk Markovic:

"In today's issue we bring you the greatest sensation, 3rd part of Flash Gordon which has never been published."

And the one Vuk sent a bit earlier was the Christmas issue for 1937 (therefore in color), and the inscription Hristos se rodi! (in cyrilic) is the traditional Serbian greeting for Christmas, meaning "Christ is born!".