VERY FINE AND CHOICE. THE 1868 ONE-CENT E GRILL IS FAR SCARCER THAN ITS F-GRILL COUNTERPART, PARTICULARLY IN ORIGINAL-GUM CONDITION.
Some time ago we observed that the 1c E Grill appeared at auction very infrequently, in any form. After analyzing the early 1868 regular-production grills (Z, D, E and F), we concluded that grilling of the 1c 1861 issue with the E (and Z) Grill must have been short-lived, occurring sometime around February 28, 1868. Later grilling of 1c stamps was probably done with the F Grill. Relatively little of the 1c E Grill supply appears to have reached the philatelic market, as evidenced by the stamp's scarcity.
Ex Silver Lake and Hoffman. With 2000 P.F. certificate