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The earlier the better, of course, and the four shellwork studies, right, are late Victorian. Nevertheless, the four, consigned from Edmonton, Canada, raised considerable London trade interest at the April 20 sale at Canterbury Auction Galleries (10 per cent buyer’s premium). The upper tiers measured 14in (36cm) and the lower tiers 9in (23cm) diameter. Set into a contemporary ebonised stand, the display sold to a West London decorative arts dealer at £2900.