For most Great Britain collectors to define ‘high value definitives’ is easy. Before decimalisation it was the values from 2s 6d to £1. Following decimalisation there was a temporary reduction to 10p (2s), while the upper limit has increased to £5 (not counting the £10 value of 1993).
I wonder what Victorian collectors thought when a 5s stamp was issued, advising of the plans for new high values up to £5 in the October 1881 issue, wrote, ‘How nice it will be to collect a variety of shades, and the plate numbers of the higher values unused.’