Lot 1684 PKerr, Dr. J.C., 4¢ black, trial color large die proof, on India, showing major die crack at right, stamp size with large even margins, fresh and Very Fine.
Scott No. RS159TC1 $375.
Lot 1685 oKerr, Dr. J.C., 4¢ blue, silk paper, well centered, flaws including thins and sealed tear, Very Fine appearance.
Scott No. RS159b $400.
Lot 1686 PKerr, Dr. J.C., 6¢ blue, trial color large die proof, on India (141x37mm), couple thins, otherwise Very Fine.
Scott No. RS160TC1 $300.
Lot 1687 oKerr, Dr. J.C., 6¢ black, old paper, rich color, couple small sealed tears at top, otherwise F.-V.F., rare with only 31 recorded in the Aldrich census (of which 19 are reported to be faulty).
Scott No. RS160a $1,000.