1¢ Buff, Re-Issue, rich color, tied by negative "K" in split circle duplexed with "Boston Mass. Apr. 6 4PM" cds on blue Mulready facsimile advertising cover of E. A. Holton, a Boston stamp dealer, addressed to Norman K. Mason in Providence R.I., Very Fine; with 1998 P.F. certificate. Scott No. 123  Estimate $2,000 - 3,000. A RARE AND DESIRABLE USE OF THE 1¢ 1869 PICTORIAL RE-ISSUE ON A MULREADY FACSIMILE STAMP DEALER'S ILLUSTRATED COVER. Only seven covers bearing this issue are recorded, including one with a slightly different Mulready facsimile design sent from the same sender. $0 (Image)