That “Long-Lost Sherlock Holmes Story”…

It's caused excitement in the national and international media. This typical headline is from Friday's Independent:
Long-lost Sherlock Holmes story by Arthur Conan Doyle written to raise funds for a bridge is found in attic…
The report begins:
"Walter Elliot, an 80-year-old historian, stumbled upon the 'great little story' in a collection written to raise funds for the flood-hit Scottish town of Selkirk at the turn of the 20th century.
" 'Sherlock Holmes: Discovering the Border Burghs and, By Deduction, the Brig Bazaar' was sold in a collection of short stories called The Book o’ the Brig."
But was it written by Sir Arthur? Alas, the answer is certainly no. Mattias Boström, co-editor with Matt Laffey of Sherlock Holmes in the Newspapers, volume 1: 1881-1892 (Gasogene Books, www.wessexpress.com) explains why in I Hear of Sherlock Everywhere, at http://www.ihearofsherlock.com/2015/02/conan-doyle-didnt-write-lost-sherlock.html#.VOnZ_y5cqAo.