This was...I hesitate to say inspired...triggered?...by the very first BBC Holmes group listen. We listened to DEVI, and someone made a remark about Holmes and Watson sending Mrs Hudson a postcard while tripping their socks off.
Here, I'm sorry to say, is that postcard.
Note proper Victorian stamp and expertly forged postmark. Also, that's a genuine 1900-ish postcard of Pollurian Bay with, I believe, Poldhu Hotel in the background.
Honestly, with the extraordinary things I feel the need to spend time on, it's remarkable how I manage to hold down a job.