Since this book consists of drawings, each copy is actually unique as can be judged by comparing the two copies held by the Sackner Archive. -- Source of annotation: Marvin or Ruth Sackner.

Since this book consists of drawings, each copy is actually unique as can be judged by comparing the two copies held by the Sackner Archive. -- Source of annotation: Marvin or Ruth Sackner.

Also designated A.DU3. -- Source of annotation: Marvin or Ruth Sackner.

The names are the childwn of Albert Dupont ; Justine was murdered by Islamic terrorists in Paris at the Bataclan theatre on November 13, 2015. -- Source of annotation: Marvin or Ruth Sackner.

The cover of this greeting card for 2013 contains a collaged image of a door and the word "Bonheur." Porte Bonheur in French means good luck charm.The third page contains a square with the unique letters spelling Treize (thiriteen).The center consists of a column of 13 strokes or dashes numbered from 1 to 13 with red check marks at the end of 12 strokes. At the top the word 'Treize' is written and at the bottom 'Traits' which means strokes or dashes.On the right side of the page above the words 'Bonne Annee' the word 'Tres' (very) is written in red.The pronunciation of 'Tres' is similar to 'Traits' and 'Treize.' -- Source of annotation: Marvin or Ruth Sackner.

This photograph is a reproduction of a work of 1973 held in the Sackner Archive. -- Source of annotation: Marvin or Ruth Sackner.