This is a photo of the 1909 World's Fair held in Seattle, the Alaska Yukon Pacific Exposition. It shows an exhibit hall before the fair opened. Only the official photographer, Frank Nowell, was allowed to take photos beforehand. Presumably Otto licensed it and printed it on contract for the Central News Co.
Note the typographical error in the title: "A.Y.R.E." instead of "A.Y.P.E." Otto was writing captions backwards on the glass negatives, and sometimes added strokes to letters.
There is another Image 90 (90 - In Woodland Park Seattle). Reuse of image numbers and different image series make it difficult to know how many images Otto published.