The tank whose picture you've posted I've taken many photos of, with the yellow triangle "point up". If you go to the [link=http://www.rclwinnipeg100.ca]Charleswood Legion Home Page [/link] you'll find another .pdf on their own "Sherman Memorial" with a white triangle also shown "point up" --which means its from a different Garry Squadron or Troop.

I know these folks -- and if those markings weren't "Correct" in every respect, they'd be screaming Blue Murder....!