Note the two depicted six-spoke wheels:
The Chiemsee Cauldron is a gold cauldron found at the bottom of Lake Chiemsee in Bavaria in 2001. The cauldron is ornamented with figures reminiscent of the style of the Gundestrup cauldron. It has a diameter of 50 cm and a height of 30 cm, and is made from 10.5 kg (23.15 pounds) of 18 carat gold.
The maker of the cauldron is believed to have been Otto Gahr, a Nazi Party member, silversmith and favoured jeweller to the Nazi elite. [...] Nazi documents dated April 1945 were found in an attic in Germany in 2011. The papers, which appear to be a movement order for 35 items ranging from gold and silver to precious stones, were discovered among items once belonging to Heinrich Himmler. The documents list a "gold cauldron/Celtic" along with the name "Otto Gahr" and "Munich".
Text source: wikipedia/Chiemsee Cauldron