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CommentsThis is a scarce pattern. Though it's linked to Hill Publishing, because covers are known. I suspect it was actually a demonstration machine that Schermack used to market their product. Hill Publishing bought a Schermack Mailing Machine with pattern 6-8-9 on or about 1/8/1910 and continued using it into 1911.
Number Of Holes9
Missing Pins5
1906 Series 314
1906 Series 3202
1908 Series 343
1908 Series 34416
1908 Series 345
1908 Series 346
1911 Series 383
1911 Series 3841
1912 Series 408
1912 Series 4092
Total Count21
On Cover6
Earliest Usage11/12/1909
Latest Usage1/7/1910
CompanyHill Publishing Co.
CityNY