Boston-Montana Mining Corporation - 1920's dated Montana Mining Stock Certificate

Stock printed by John A. Lowell Bank Note Co., Boston. Maybe the same as the Boston-Montana Mining Company. The Montana Southern Railway, now defunct, was an American 3 ft (914 mm) narrow gauge railroad constructed between Divide, Montana and the mining district of Coolidge, Montana. The short-lived line was noteworthy in that it was the last common carrier narrow gauge railroad to be constructed in the United States. The Montana Southern Railway was largely the brainchild of William R. Allen, a politician and entrepreneur who had served as the lieutenant governor of Montana between 1909 and 1913. Allen was the president of the Boston-Montana Mining Company, which was developing a large silver-mining operation in the remote Pioneer Mountains of far southwestern Montana. Because of the site's remoteness and poor access, a railroad was considered to be a necessary component of the mining district's development. Read more at https://en.wikipedia.org/wiki/Montana_Southern_Railway