VTG MCM Palle Bisgaard P. BIS Danish Sterling Silver 925 Collar Necklace Denmark 36G

As imaged.

The piece of jewelry pictured is a beautiful, minimalist torc necklace (also called an open neck collar or choker) made of solid sterling silver.

The design is an excellent example of Scandinavian Mid-Century Modern design (mid-20th century). The hallmarking (stamping) reveals all the important details regarding its origin: