I am still interested in reading online or otherwise acquiring information and ephemera related to Inkograph and Wallace pens. I am also interested in any info on Joseph Wallace (inventor of stylo improvements) and W.F. Wallace; both were the founding officers of Inkograph. The W.F. Wallace of interest is William Frank Wallace, not the one associated with Wallace Business Forms nor Melville W. F. Wallace.

I currently have the excellent 1928 repro brochure from Billspens.com, everything Google has to offer (including patents) as well as ads and articles from the archives (1851-present) of the New York Times, and a copy of the article from Pen World Plus V1N5. Also in hand are copies of 3 New York Department of State, Division of Corporations documents regarding Inkograph: Certificate of Incorporation, Certificate of Increase of Capital Stock and Certificate of Dissolution.

In addition, the last time I inquired I received images of flyers, a letter and coupons, circa 1935, from a generous list member.

Many thanks to those who responded to my earlier request.