Lot
620 
1912, 15¢ gray, S.L. watermark, perf 12, top plate block of 6, o.g., exceedingly well centered throughout, Very Fine. Scott No. 418 $1,000.
Realized: $350
Sale 106: The Stanley Piller Inventory of United States
1908-1912 Washington-Franklin Issues
Lot 620
1912, 15¢ gray, S.L. watermark, perf 12, top plate block of 6, o.g., exceedingly well centered throughout, Very Fine.Scott No. 418 $1,000.