Armstrong & DeGuerre (San Fancisco, CA)
Armstrong & DeGuerre
Blank Book Manufacturers
404 Montgomery Street
San Francisco Business Directory,1896. First listing in the directories.
407 Montgomery. Crocker Langley S. F. Business Directory,1900. Was still
at this address in 1905, the last directory before the 1906 fire which burned
this area. No listing in 1907, the first directory after the fire or in
1908-1910, Crocker Langley Business Directories.