Flag of Lethbridge, Alberta, Canada.
According to "Canadian City Flags: 100 Flags from Abbotsford to Yellowknife" (ISBN 978-0-9747728-3-7), this was the historical flag of "Fort Whoop-Up", established by American whiskey traders in 1868, and "It has been suggested that the design is reflective of what an inebriated person might draw while attempting to draw the Stars and Stripes."
Self-made. Modeled from photo.
Svgalbertian