From Heraldry of the World
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Civic heraldry of Germany - Deutsche Wappen (Gemeindewappen/Kreiswappen)
The arms were granted on July 14, 1978.
The letters A and V stand for Amt Vlmet (Ulmet), the historical area the municipality belonged to. The miner's tools symbolise the former mercury mining in the area. The crescent is taken from a document from 1748, where the local council signed with a crescent as a symbol.
Literature : Debus, 1988