US Schermack Control Perfins

Perfin Image
Cover
Number of Holes	9
Missing Pins	3-6-7-8
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
1911 Series 384	3
1912 Series 408
1912 Series 409
Total Count	3
Total Count On Cover
Earliest Usage
Latest Usage
Comments	This is the 3rd broken pin version of Babson's original pattern 37. A used stamp is known with Chicago CDS cancel dated 3/28/1911. Very scarce stamp. The window of opportunity to produce this pattern was very small.