However, all new artwork was done for these books, rather than applying the 3-D process to the original illustrations from the first presentations of the stories.

A 3-D camera photographed a subject from two different positions and angles, corresponding to the points of view of the left and right human eye.

The 3-D viewing device had two filters with the colors reversed, green for the left eye and red for the right.

The artists who redrew these were all EC regulars: Johnny Craig, Jack Davis, Bill Elder, George Evans, Graham Ingels, Bernard Krigstein, Joe Orlando and Wally Wood.

The second, by Feldstein, showed a pair of hands reaching out of an open comic book to threaten its 3-D viewer-wearing reader, while the Crypt-Keeper and his friends look on approvingly.

1 (EC Classics): "V-Vampires" (Mad #3) re-illustrated with new layouts by Wally Wood, "The Monster From The Fourth Dimension" (Weird Science #7, originally illustrated by Feldstein) now illustrated by Bernie Krigstein, "Frank Luke" (Frontline Combat #13) re-illustrated with new layouts by George Evans, and "Mr.

(Tales From The Crypt #25) re-illustrated with new layouts by Jack Davis, "The Strange Couple!"

(Vault Of Horror #14, originally by Feldstein) now illustrated by Bill Elder, "Bats In My Belfry!"

('Tales From The Crypt #24, originally by Jack Davis) now illustrated by Johnny Craig, and "The Thing From The Grave" (Tales From The Crypt #22, originally by Feldstein, who also co-wrote it with Gardner Fox) now illustrated by Joe Orlando.

The stories to have been included were 3-D versions of "Spawn of Venus" (Weird Science #6, originally drawn by Feldstein) now illustrated by Wally Wood, "Slave Ship" (Weird Science #8, originally by George Roussos) now illustrated by Bernie Krigstein, "Child of Tomorrow" (Weird Fantasy #17, originally by Feldstein) now illustrated by Reed Crandall, and "The Planetoid" (Weird Science #10, originally by Joe Orlando) now illustrated by Al Williamson & George Evans.

2-D b&w versions of those last four redrawn stories did finally see print in the late '60s - early '70s in the fanzines Witzend #6, 1969 (Spawn of Venus), Squa Tront #4, 1970 (Slave Ship, Child of Tomorrow), and Squa Tront #5, 1974 (The Planetoid) - up to 2013 that set of fanzines were the only way to acquire any of the works done for this unpublished issue.

Three of the stories from the first issue, all four from the second, and three from the unpublished third, have now been reprinted in 2-D in volumes of the Fantagraphics EC Comic Artists' Library: Al Williamson: 50 Girls 50 [2014] - with 3D story 'The Planetoid' Jack Davis: Tain't The Meat..

One factor was price: 3-D comic books commonly cost a quarter instead of the usual dime.

[5] Another was societal pressure: monochrome 3-D comics were better suited to darker stories at a time when these were beginning to attract unfavorable public attention.