A scan of this advertisement is located at the University of Oregon's Historic Oregon Newspaper site: https://oregonnews.uoregon.edu/lccn/sn83045782/1912-07-07/ed-1/seq-45/.

The same graphic used in this advertisement was later used in a January 5, 1913 advertisement for the San Francisco Telephone Herald.
Sunday Oregonian, July 7, 1912, section 3, page 11:
Oregon Telephone Herald