Much of Powell's work was done with assistants in a studio setting. So though only he gets credit here, it should be assumed that others had a hand in details and/or inking, including, possibly, Howard Nostrand, who did a lot of work with Powell.
The left figure is from the splash page of the Man in Black story from Green Hornet Fights Crime (Harvey, 1947 series) #34; the right figures are taken from the Man in Black story from Green Hornet Fights Crime (Harvey, 1947 series) #33; the corner image is from the splash page of "The Tale of the King of Swing" from Speed Comics (Harvey, 1941 series) #43.
Splash page of The Man in Black introducing himself and the theme of the stories within.
A half-page strip, fills the bottom portion of the previous story's last page.