Lot
4287 
1991 (23¢) Flag & "Presorted First-Class", Transitional strip, strip of seven with mis-registered perfs showing left stamp completely imperforate, o.g., never hinged, light horiz. crease, Very Fine and rare; with 2005 P.S.E. certificate for strip of 11. Scott Nos. 2605a Estimate $1,000 - 1,500.
This strip provided two fully imperforate pairs and this transitional strip. As a point of reference regarding rarity, the William Langs Inventory did not include any of these items.