c1907  A coloured postcard of the steamboat SARONIC of the Northern Navigation Company's Lake Superior Division A coloured divided back postcard. "Northern Navigation Co.'s Steamer "Saronic," Lake Superior Division" "102,812" Reverse: "The Valentine & Sons' Publishing Co., Ltd. Montreal and Toronto...

  c1906  Black and White postcard of the Canadian Towing & Wrecking Company ice breaking tug JAMES WHALEN in the waters of Lake Superior off Port Arthur. Divided back. Postmarked Fort William, ON 13 Oct 1906 "Ice-breaking tug "Whalen" breaking through 32 inches of ice"

  19 Apr 1905  Real photo postcard of the the Mackinaw straits ferry, the Island Transportation Company's steamboat ALGOMAH and at least six freighters and a tug boat tied up because of a serious freeze up. There is another photo taken on the same occasion which identifies this as an ice jamb on Lake Superior...

  c. 1906,   A view of the Northern Navigation Company steamboat MONARCH after it was wrecked of the shore of Isle Royale. A black and white photograph of the MONARCH on a divided back postcard. "Wreck of Monarch, Isle Royale, Dec. 7. 06" Reverse: "Published by W.T. McKachren."