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CommentsThis very rare pattern has been associated with Spencer Trask. I'm not sure why ? . They continued to show usage of Des 90-1 after the Des 90-2 reported date of 7/1/1910. Must have been reported on cover at one time. Possible blind perf ?? I'd like to see one.
Number Of Holes9
Missing Pins1
1906 Series 314
1906 Series 320
1908 Series 343
1908 Series 3441
1908 Series 345
1908 Series 346
1911 Series 383
1911 Series 384
1912 Series 408
1912 Series 4091
Total Count2
On Cover
Earliest Usage7/1/1910
Latest Usage7/1/1910
CompanySpencer Trask & Co.
CityNY