What does 90 mean on silver flatware?

Excellent Art Nouveau silver coffee and tea set consisting of 6 pieces: coffee pot, teapot, hot water kettle with rechaud and burner, sugar bowl, cream jug and tray. Bulbous, raised ...

Elegant cutlery set made of solid silver for twelve people, consisting of 140 parts, in wooden showcase. Date of manufactory: around 1920 Material: massive 800 silver + steel blades Form type: Simple, elegant design with curved handle ends with surrounding thread. Wooden Showcase: This silver cutlery set is kept in a sleek, glazed wooden showcase. Display window on the top, from the front the four drawers, which are perfectly equipped on the inside, can be opened with the button-shaped brass handles. The showcase stands on four small feet, the wooden surfaces ore shellac hand-polished. 140 Pieces: 1st drawer: 12 mocha spoons / 12 coffee spoons / 1 butter knife / 1 cheese knife / 2 salad servers / 1 sardine server / 1 soup ladle / 2 serving spoons / 1 bowl scoop 2nd drawer: 12 soup spoons / 12 dessert spoons / 1 sauce ladle / 1 meat server / 2 cake lifters / 1 butter/porridge scraper 3rd drawer: 12 starter forks / 12 dinner forks / 12 starter knives / 12 dinner knives / 1 serving fork 4th drawer: 12 dessert forks / 6 fish...

Elegant, festive silver vessel with a wide oval vertical wall standing on four feet attached to the lower rim, central cartouches on the front and back, supported by a surrounding, relief and openwork flower and leaf interlacing, slightly curved upper edge, two handles attached to the sides in the form of wavy ribbons pulled...

Pair of etched glass and silver pitchers by Bruckmann & Söhne German, circa 1900 Measures: Height 33cm, width 17cm, depth 14cm The pitchers, or claret jugs, in this pair by Bruc...

Representative elegant silver jardinière in an elliptical basic shape, standing flush on a stepped lower edge, outwardly curved wall divided into segments by pilasters, regular verti...

Two elegant silver centerpieces on a three-pass base with delicate embossed decoration and three winged lion figures supporting the richly ornamented and pierced insert for the proje...