Lot
360 
Panama, 1903, Registration, 10c on 20c blue, blue "6353" handstamp, used with Panama 1904 10c orange, two singles, tied by "Panama, 7 Jun 1904" duplex on blue cover to Guatemala at the double rate for 15-30 grams, purple Guatemala (6.17) arrival oval and cds, Very Fine and rare. Scott No. Panama F11 + 79 (2) Estimate $400 - 600.
Realized: $375