Smith, Roger: Revolutionary Card Compositions - Slow-Motion Ace Switch-A-Roo ©1971 Roger Smith, MO Softcover, saddle-stitched, 8.5x11", 8 pages

Image courtesy eBay seller LostTreasuresReturn

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Contents (courtesy Denis Behr's ConjuringArchive.com):

1 Introduction
1 Slow-Motion Ace Switch-A-Roo
2 Fancy Count
2 FC Ace Addition
3 Face-Up Drop Addition
8 Final Thoughts and Notes