This note is not Sherlockian, but is a note about the best non-Sherlockian tale written by Sir Arthur Conan Doyle. That is, in my opinion, THE LOST WORLD. The silent film of the book premiered on February 8, 1925 for an industry audience at the Astor Theatre. Though silent, the dinosaur models were filmed in stop action motion and were fantastic, and still are to me.
Again kudos to A CURIOUS COLLECTION OF DATES by Leah Guinn (“Amber”) and Jaime Mahoney (“Tressa”) for the information.