US Schermack Control Perfins

Perfin Image
Cover
Number of Holes	9
Missing Pins	3-7-8
City	CHI
Company	Babson Brothers and affiliated vendors
1906 Series 314
1906 Series 320
1908 Series 343
1908 Series 344
1908 Series 345
1908 Series 346
1911 Series 383	2
1911 Series 384
1912 Series 408
1912 Series 409
Total Count	2
Total Count On Cover
Earliest Usage
Latest Usage
Comments	Very rare. This is one of the missing links between the original pattern 3-7 and common pattern 3-4-6-7-8. One on piece with 3/13 hand written. Very small time frame in which this pattern was produced.