Look Here: Ellery Queen shadowbox covers, post 3 of 3

What follows is the final group of four paperbacks from the Signet series of Ellery Queen novels that I have in my personal library:

[CLICK IMAGES TO ENLARGE]

The novels were published in the early 1970s by The New American Library of Canada Limited, Toronto, Ontario. The scans are my own.

NAVIGATION:

• Look Here: Ellery Queen shadowbox covers, post 1 of 3
• Look Here: Ellery Queen shadowbox covers, post 2 of 3
• Look Here: Ellery Queen shadowbox covers, post 3 of 3<–YOU ARE HERE

Keywords: Murder with a Past, Wife or Death, The Golden Goose, The Four Johns.