I agree on the letter - it seems a little oddly worded. It could be real, but I could also believe it's not. I seem to recall the order book might have some further clues that indicate it was for someone in Russia, etc.

The last Julia auction had a Parker with a similar letter. It just had a fake ring to the wording. It sounded like a letter written by someone in modern times, not by someone 80 years ago.