While 3D was introduced by Arch Obeler in late 1952 with "Bwana Devil" it didn't really break wide until 1953. The Pacific Northwest's first taste of the third dimension on the big screen was a program called simply "3 Dimension" released by Thalia Productions. I can't find anything about this other than Lou Guzzo's article from the Seattle Times which indicates it's a compilation of 3D shorts.
The following is a collection of print media from the initial runs of 1953's "3 Dimension Motion Pictures" in the Pacific Northwest.
Click on images for larger versions.
February 3, 1953 ad (Portland)
February 4, 1953 ad (Seattle)
February 5, 1953 ad (Portland)
February 5, 1953 ad (Seattle). I find it interesting that the show started on the same day in Seattle and Portland, yet the ads for both cities claimed it was the "Pacific Northwest Premiere."
February 6, 1953 article (Seattle)
February 6, 1953 ad (Portland)
