Rare Stamps & Postal History of the World

1887 1c ultramarine, full pane of 100, containing two plate number blocks of 12 (at top and bottom), slightly more than half the stamps n.h., some separations and reinforcements, few stamps away from the plate blocks with thin spots, some marginal toning, otherwise fine-v.f. and rare sheet,
Cat. Val. $19,000
Estimate: $3000