The Winsor & Newton Artists watercolour one stroke brush size 3mm is a good quality Kolinsky sable brush, combined with a matt
...Winsor & Newton artists picture cleaner 75ml is a liquid which is designed for the cleaning of varnished paintings & is an excellent product for this purpose. It works by dissolving linseed oil oxidation & will remove surface dirt & the products of oxidation in the old varnish. Winsor & Newton artists picture cleaner 75ml contains an emulsified mixture of Copaiba balsam, dipentene & pine oil with ammonia.