Originally, this embroidery was sewn on a pair of black mittens that was found in Heidal, in Nord-Gubrandsdalen. The original pair came to museum in 1911, so they are probably from the last half of the 1900th century.
The mittens are knitted in a 100 % wool yarn called Falk from Dale. The embroidery is done with a fine wool thread from Appelton. I doubled the thread to give the pattern more fullness.
See this blog for more information.