Auction UPA 93

V.R.I. raised stops 1d on 1d purple transposed overprint vertical strip of four with margin at right fresh mint, three are unmounted, very fine, with OFS Bulletin article saying that this is definitely genuine and that perhaps only one sheet was affected, vendor states that this is the only known multiple of this variety (image available) {MH} [US10] (Start Price / Minimum Bid = £88.00)