First edition, first issue, with Spencer Blackett on the bottom of the spine. Very good in original cloth covers. Housed in a custom-made slipcase. The item "ARTHUR CONAN DOYLE The Sign of Four FIRST EDITION 1890" is in sale since Friday, April 7, 2017. This item is in the category "Books\Antiquarian & Collectible".
The seller is "bookbid" and is located in Beverly Hills, California. This item can be shipped worldwide.