Wayne, not an expert, but thanks for notifying me. Casper, thank you for posting this. Another great site for any Pre 1927 Ford information is the "Model T Ford Club of America (and International, another great Ford site). I have an article dated February 1904 detailing an air cooled car Ford is displaying at the Detroit Auto Show. It appears the cylinder dimensions are the same as your article. Also, attached is an ad that ran in the New "York Sun", showing a "Model H". Thank you again for posting. Rob Heyen I've not posted on this site for some time, so not sure I'm able to post pics, but I'll try: