Are all Orrefors signed?

An interesting heavy crystal bowl by "Orrefors", Sweden. Signed with paper label.

Nice Fish Graal Vase by Edward Hald for Orrefors, Sweden 1957 Item e6741 A heavy vase of the Graal series designed by Edvward Hald for Orrefors Sweden in 1938. Clear and green glas decorated with underwater flora and fishes, overlayed with a thick clear glass layer. This example dates to 1957. Signed with: 'Orrefors Graal No 471 M Edward Hald'. An authentic piece of Midcentury Modern Scandinavian glass design. Edward Hald (1883 – 1980) is one of the well-known Swedish glass artists who have worked for Orrefors. After studying in Leipzig, he completed his artistic training with Henri Matisse in Paris. The famous Graal glass is one of the first masterpieces of Edward Hald, which he developed together with Simon Gate and Knut Bergqvist...

Orrefors heavy dropped formed blue vase and one large rounded heavy vase designed by Sven Palmqvist. Wonderful glass with exceptional blue color that collaborates with the clear gl...

Stunning crystal glass apple by Ingeborg Lundin, tinted crispy green. The apple is an iconic piece, composed in 1955 and was first presented at H55 where it caused a sensation. The design is the epitome of Lundin’s pure, gracious style. About Ingeborg Lundin: Ingeborg Lundin was a Swedish glass artist, whose 1950s and 60s designs are among the most influential of that era. Lundin got her education at Konstfack in Stockholm and started working at Orrefors directly after her graduation in 1947. She stayed at Orrefors until 1971, redefining the art of glass design with her pure, gracious, sometimes ethereal creations. Ingeborg Lundin received the Lunning prize in 1954 and a gold medal at the Milano Triennale in 1957. Literature: Svenskt glas...

These 12 Swedish vintage Sommerso and dusk glass vases, produced circa 1950s-1960s by designer Nils Landberg for Orrefors, with smoked charcoal interior, cased within a clear layer. ...

This pieces where made at Orrefors Sandvik and designed by Simon Gate in the 1920s-1930s Sweden. The have light brown tone in the glass. Wonderful shapes and lines. Good vintage co...