Judith Miller reveals the top ten things you should know before buying antique and new Georg Jensen silver, from popular patterns of hollowware to price ranges, as well as styles and forms to look out for.

"Prices rose about 15 per cent over the past decade, but levelled out during the recession, writes Miller. Among the Danish firm's most sought-after designers are Jensen himself, Johan Rohde (Modernism), Harald Nielsen (Art Deco) and Vivianna Torun Bülow-Hübe, known as Torun (Post-Modern).