Synopsis from JAT Publishing site:
A new b ook publication by Joseph A. Tunzi / JAT Productions and Daryl W. Restly, 'Encore Performance Volume VI: '57 at 60 ‐ Tonight Elvis Presley', features unreleased photos of Elvis Presley, from the John Sebert collection, that were taken on April 2, 1957 at Maple Leaf Gardens in Toronto, Canada. These photographs are taken from the original negative sources and appear in better quality than you will find in other publications. Back in 2015, while JAT Productions was preparing the book, Encore Performance V: One Performance Only, Featuring Chicago '57, Tunzi acquired the original negatives from the John Sebert collection. This collection included over 300 photographs taken that evening. '57 at 60 ‐ Tonight Elvis Presley will retail at $79.95 (includes shipping & handling) and will feature roughly 250 of these images.
(Source: FECC / JAT Publishing)