Britain. Used. An outstanding range of perfins with for example, 'Hong Kong and Shanghai Bank', 'crown' perfins among many many others, neatly organised alphabetically with at least 80x 3d on 3d lilac SG #159, cat £160 each £12,800 and at least 88 examples on the 6d on 6d lilac SG #162 cat £150 e.g. £13,200 making a total £26,000+ Perfins are far scarcer and are becoming extremely popular collecting areas today. All in all at least 50 different departments/governmental agencies, securities markings, companies at the height of the British Empire, all well worth researching. It will be a long time before such a collection of QV comes on the market again, viewing highly recommended.
