Lot 1734 PPerl & Co., 6¢ black, large die proof, on India die sunk on full card (213x150mm), some card tone spots, otherwise Very Fine, scarce.
Scott No. RS188P1 $300.
Lot 1735 oPerl & Co., 6¢ black, old paper, into outer frameline, strong color, small tears at top and slight thinning, Fine appearance, a very rare and notoriously poor condition issue, only 23 are recorded in the Aldrich census (of which 14 are reported to be faulty), ex-Rosenberg.
Scott No. RS188a $1,650.