Based on the 3-cent postage rate, this postcard must be circa 1958 to 1963. The description on the back reads:
The Aerial Bridge in raised position for an ore boat passing into Duluth Harbor. When the span is lowered traffic may move without interruption between Minnesota Point and downtown Duluth. Through this canal pass about 4500 boats in a 7-1/2 month season, carrying a total tonnage of about 17 million tons. (Average for five years.)
This photo from the National Archive was taken on an airplane from the McCook Field aviation experimentation station in Dayton, Ohio, which was flying in the region for a photographic mapping expedition of the Canadian border in October and November of 1925.
The caption on the photo reads:
Duluth Harbor Basin, the main business section and portions of Lake Superior, showing the “Eighth Wonder of the World,” the Aerial Bridge connecting Duluth proper with a long neck of land known as Minnesota Point, which really makes the Duluth Superior Harbor.
This postcard image looking out from Skyline Drive at the city’s hillside, downtown, Aerial Lift Bridge, Minnesota Point, Lake Superior and so on has been used a few times as Perfect Duluth Day’s cover photo on Facebook, and more than once has been met with the question, “Who did this painting?” The answer is, we don’t know. Old postcards rarely credit the artist. But maybe someone out there knows.
For your Valentine’s Day pleasure, here are 19 seconds of images shot by Dennis O’Hara over the weekend, showing the Full Snow Moon drifting skyward behind the Aerial Lift Bridge.