File:DOK's Signature.png

Summary
|Description      = A closeup of the signature "DOK" (John Hager) used in his cartoons and illustrations, published in the 1911 book, The Cartoon; A Reference Book of Seattle's Successful Men. |Source           = https://archive.org/stream/cartoonreference00calv#page/n47/mode/2up |Portion          = small clipping of the page |Low_resolution   = This is a low resolution image |Purpose          = To illustrate the article about John Hager.
 * Article          = John Hager (cartoonist)