Occult Files of Doctor Spektor (1973 Gold Key)# 6 - Dr. Spektor in "The Dungeon of Frankenstein" and "Temple of the Lion." Jesse Santos art. Painted front cover. # on cover 90285-402 February. #6 2/74 20c Cover price $0.20
Occult Files of Doctor Spektor (1973 Gold Key)#15 - Dr. Spektor in "The Brain of Xorkon" with story by Don Glut and art by Jesse Santos. Story has Baron Tibor appearance. Painted front cover. # on cover 90285-508 August. #15 8/75 25c Cover price $0.25.
Occult Files of Doctor Spektor (1973 Gold Key)#17 - Dr. Spektor in "Bride of the Walking Dead" with story by Don Glut and art by Jesse Santos. Painted front cover. # on cover 90285-510 October. #17 10/75 25c Cover price $0.25.