Final answer:
The question regarding what Packer carved under his old desk cannot be answered as there is no context or reference to a character named Packer or any carving in the provided text excerpts.
Step-by-step explanation:
The question "What did Packer carve under his old desk?" does not seem to relate to any specific text or reference within the given excerpts. The provided information suggests a setting where various objects such as a writing-table, musical instruments, a card-rack, and a desk with organized pigeon holes are described, each with different contents and details. There is no mention of a character named Packer or any carving under a desk.
It appears that this question might refer to a particular story or narrative not included in the excerpts. Without the proper context or reference to a specific work of literature where a character named Packer carves something under a desk, it is impossible to answer this student's question confidently and accurately.