Final answer:
There is insufficient context to determine what Mr. Deauville saw stamped on the box of storybooks, as none of the provided excerpts mention Mr. Deauville or describe the stamped contents of a storybook box.
Step-by-step explanation:
The student's question requires the identification of items Mr. Deauville saw stamped on the box of storybooks he received. As none of the provided excerpts specifically mention a character named Mr. Deauville, it is not possible to determine the exact contents of a box associated with him. The excerpts describe various scenes involving books, letters, and packages, but they do not directly relate to a character called Mr. Deauville or detail the precise stamps seen on a box of storybooks. Therefore, without additional context from the question or the relevant source material, providing a factual answer about what Mr. Deauville saw stamped on a box is not feasible.