Fort Cluster, Mont., Registered, Jun 16, 1885. Bold purple straight line date stamp (S&D type 5) on rebacked cover front to Walla Walla, Wash. Terr., franked with 2¢ red brown + 10¢ brown, re-engraved canceled by target handstamps, a Very Fine strike, a rare registry postmark, recorded by Shellen & Dunn as unique. Scott No. 209+210  Estimate $100 - 150. $0 (Image)