Lot 20687 – 10 bani yellow-orange bisect on « Quitanta » postal receipt

10 bani yellow-orange, large even margins on left half of a vertically bisected stamp, tied by superb boxed by « FRANCO » in blue, on « Quitanta » postal receipt, a showpiece, an extremely rare usage as only a few of these bisects are known, eight being recorded by Heimbüchler.