Observatory Inlet British Columbia 1903 Hoen historical map Alaska TribunalObservatory Inlet from the Admiralty Survey of 1868. (North America, Canada, British Columbia, Observatory Inlet, Historical Map). Issued 1903, Washington for the Alaskan Boundary Tribunal. Lithographed in Baltimore by Hoen. Original map issued 1868 by Cameron. Early 20th century reissue of this historical map pertaining to the historical boundaries of Alaska for the use of a 1903 international tribunal to finalize the Alaskan border with Canada. Well