The Dreams of Space blog has scans of a monthly Russian children's magazine "Veselye Kartinki" Number 4. This 11.4" x 8.6" 16 page magazine from April 1964 features a variety of comics, stories and activities drawn by Russian illustrators.
"Veselye Kartinki" No. 4 Part 1
"Veselye Kartinki" No. 4 Part 2
Here are some more covers and illustrations from the early 1960s children's comic Veselye Kartinki which I was able to pull just now. These are wonderful: