In the 1960s and 1970s Helga Zahn (1936–1985) was one of the leading jewellery artists in Great Britain. She had a preference for silver and natural materials such as pebbles. Her vocabulary is formed from the clarity of simple geometric shapes –  the rectangle and circle –  from the simpilcity and sobriety of connecting elements –  mostly simple small rings –  and from an almost starkly reduced colour canon: silver, black, brown. Exceptional one-off jewellery pieces emerged, partly using found objects.