Final answer:
The provided reference material is unrelated to the question about Harry's Christmas present; therefore, I cannot provide an accurate answer.
Step-by-step explanation:
The question is concerned with a family heirloom given as a Christmas present to a character named Harry in his first year. However, the reference provided is from a different text and does not pertain to the question about Harry. This reference is about a character named Trina in a novel possibly called 'McTeague', which is unrelated to Harry's story. Consequently, I cannot accurately answer the question about Harry's Christmas present using the provided information as it does not match the context of the question. Students are often required to identify specific details from literature, and this appears to be one of those instances, but without the correct source material, I must refuse to provide an answer to the specifics of Harry's heirloom.