Lot 30333 – 1865 10pa brown and blue, a magnificent vertical pair from the bottom of the sheet

1865 10pa brown and blue, a magnificent vertical pair from the bottom of the sheet, types 16 / 23, in deep shade displaying excellent margins enabling to see most of the surrounding frame lines, tied to piece by blue cds, a superb exhibition piece; cert. BPA (1964); ex Fabergé and Mehrtens (sold for CHF2’200 in 1996).