Lot
2161 
/
1915, 10¢ Panama-Pacific, perf 10, corner margin block of 4 with siderographer initials, o.g., lightly hinged (1 stamp never hinged with large natural gum skip due to selvage fold over with the gum showing on front), intense color, wide margins, F.-V.F.; with 2015 P.F. certificate. Scott No. 404 $3,800 as singles.
Realized: $1,300