unused ½a. Plate II imperforate, four singles, [1], [2], [14] and [18], in pale ultramarine, and a further single, [1], in blue-grey; scarce

Details
unused ½a. Plate II imperforate, four singles, [1], [2], [14] and [18], in pale ultramarine, and a further single, [1], in blue-grey; scarce