Source: http://www.law.ed.ac.uk/ahrc/SCRIPT-ed/vol6-2/greenleaf.asp
Year of publication unknown, but probably late 19th Century. A different image of the same ad is found on Google Books' scan of "The Cornell Countryman", May 1905, page 193.[1]
Text:
United States and Foreign Copyright. Patents and Trade-Marks
A Copyright will protect you from Pirates.
And make you a fortune. If you have a play, sketch, photo, act, song or book that is worth anything, you should copyright it. Don’t take chances when you can secure our services at small cost. Send for our special offer to inventors before applying for a patent, it will pay you. Handbook on patents sent free. We advise if patentable or not. Free. We incorporate stock companies. Small fee. Consult us.
Wormelle & Van Mater,
Managers,
Columbia Copyright & Patent Co. Inc, Washington, D.C.
Source: http://www.law.ed.ac.uk/ahrc/SCRIPT-ed/vol6-2/greenleaf.asp License: Attribution-Non-Commercial-No Derivative Works 2.5 UK: Scotland Newspaper advert: Year of publication unknown, but prob late 19th Century. Text: United States and Foreign Copyr