Thank you for providing the full citations so I didn't need to go find them.
Lazzard (and others),
If you are trying to establish something is the first or place a data point on a timeline you need to provide the FULL CITATION INCLUDING DATE AND PUBLICATION. It also helps if you provide the full text or in modern times, just provide a link to the on-line version.
Though not an advertisement, in the Twice-a-Week Plain Dealer of December 27, 1912 on what I believe to be Page 4, under the heading Patents Granted Iowans you will find the text "Fountain Pen Attachment, W. A. Sheaffer, Fort Madison.
Unfortunately I'm not able to pull down the image for this at this time.
Finding the misspelled Sheaffer ad is a good find. I had not found this one. I do like the spelling problems the Editor seems to have encountered.
Perhaps we should embark on the earliest ad for a Fountain Pen. I found a contest advertizing a Fountain Pen as the prize in a San Francisco news paper from 1910. I could likely find it online if there is interest or go to SF and take a picture of it if google hasn't done so for me. There must be earlier ads than the 1912 Sheaffer ads.
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