Mark Irwin posted an updated to his "Peterson Pipe Notes" blog this morning, a wonderful Christmas Day gift for Peterson fans. As noted in his comments, the transparency shown is incredible, including marking fill spots, etc. The promotional film was made in 1998 but has an older feel. Either that, or I'm getting older!
https://petersonpipenotes.wordpress.com/2015/12/24/the-making-of-the-peterson-pipe-vhs-1998/comment-page-1/#comment-348
https://petersonpipenotes.wordpress.com/2015/12/24/the-making-of-the-peterson-pipe-vhs-1998/comment-page-1/#comment-348