1893 2½d ultramarine used block of six (SG40), watermark Crown CA and perf 14.  In 1904 the 2½d, 3d, 4d, 6d, 1s and 5s stamps of this issue were sold as remainders and defaced with a violet diamond-shaped grill with four and five interior bars extending over two stamps (Stanley Gibbons, 2013 and Proud, 2005).