1911, 3¢ deep violet, the "Orangeburg" coil. Centered to right and with full guideline at left, deep rich color, tied by "Orangeburg N.Y. May 4 5PM 1911" wavy-line machine cancel on light gray clasped envelope with "Bell & Company Incorporated Manufacturing Chemists" corner card to New York City, two minor cover edge tears as is usual for the Bell & Co. coversVERY FINE AND CHOICE. ONE OF THE FINEST EXAMPLES OF THE RARE 3-CENT ORANGEBURG COIL ON COVER. ONLY TWELVE ORANGEBURG COIL COVERS HAVE BEEN CERTIFIED AS GENUINE BY THE PHILATELIC FOUNDATION.This May 4, 1911 date is early for the Orangeburg coil. The presence of the guideline is a rare and desirable feature, as no guideline pairs are known.Signed by Bartels and Sloane. Ex Agris. With 1988 P.F. and 2003 certificates. Scott No. 389  $27,500. $0 (Image)