823 - Seattle Cedar Lbr. Mills (Largst Shingle Mill in the World)

Image 823 - Seattle Cedar Lbr. Mills (Largst Shingle Mill in the World)
Image 823 - Seattle Cedar Lbr. Mills (Largst Shingle Mill in the World)

The superlative suggests that this image was printed as an advertisement for the mill. Note the spelling of "Largest" and the missing right parenthesis.