South Australia 1880 1d Variety Double Impression, Cert

1880 QV 9d rose-lilac VARIETY DOUBLE IMPRESSION (SG 123var). F/M part OG example being the ONLY RECORDED UNUSED COPY (the Royal Collection contains a used single). An exceptional variety, an exhibition showpiece. Photo-cert: BPA. Provenance: Ex Butler. See additional image and of certificate below.