1840-1951, nice valuable collection, going through used from no. 1 with a number of Shilling and pound values, as well amongst other things Michel-no. 5-7 (all square), 35 (3x), 49-50 (both with "Maltese cross" - watermark 7), 82-84.115-118.174.186-188 (2x) etc., furthermore postage due stamps as well various issues with lying respectively inverted watermark, very high catalog value, have a look and calculate!