Vintage David Andersen Sterling Viking Brooch 925 A wonderful vintage David Andersen Norway Sterling Silver Viking Brooch Pin. This is depicting a snake serpent from the Viking period. The brooch is sterling silver with an antiqued look. The back is marked " DA Sterling Norway 925 S, Original from Viking period 1000 AD, Copy Excellent vintage condition with minimal wear, the clasp is still very functional. Please take a look at all the photos and use them as part of the description.