Note the skyscraper being erected in the background.
This image was also printed with a more extensive caption:
There is also an Image X12 (X12 - Fisheries Bldg. A.Y.P.E. Seattle 1909) from the Alaska Yukon Pacific Exposition. There is no way to tell which photo was taken first. Reuse of image numbers and different image series make it difficult to know how many images Otto published.