Lot
2603 
Envelope, 1965, 5¢ bright purple, orange-red tagging error, mint entire with address window, size 12, knife 68u, watermark 48, fresh and clean, Extremely Fine and scarce variety; with 2002 P.F. certificate. UPSS No. 3522 var. Scott No. U550b; $350 Estimate $300 - 400.
Realized: $325