1¢ green, "Due Cents" Seattle Provisional Postage Due, block of six, each with diagonal handstamp, natural s.e. at bottom, o.g., small hinge remnants, Very Fine, This is the only recorded block. Scott No. 405 var.  Estimate $300 - 400. The Seattle Postmaster exhausted the supply of Postage Due stamps and overprinted 1¢ and 2¢ stamps with a handstamp. $0 (Image)