Blazon: Per fess or three ivy leaves in chevron vert and of the second a hunting-horn argent, stringed of the first
As a small, heavily wooded community, I’m sure it’s not a surprise that forestry is (and has been) very important to the economy of Düns. The ivy leaves in the chief were apparently used as a brand on the wood they traded. (I am so happy the lovely people at heraldry-wiki.com mentioned that those were ivy leaves, because I would not have gotten that.) The hunting horn evidently comes from the estate of Jagdberg; their arms didn’t survive, but the hunting horn shows up in a few other Austrian arms.
Blazon: Per quarterly argent and gules, two hunting horns respectant counterchanged, in base a triple mount vert
The three mountains (“bergs”) are likely an allusion to the town’s name, while the hunting horns probably come from the arms of the house of Hornberg. One of the early members of that family, Adelbert von Ellerbach, built a castle in the area.
Blazon: Vert a trident palewise issuant from the base, pendant therefrom by the strings a hunting-horn or, between two flaunches argent each charged with as many bars wavy azure
Crest: On a wreath of the colors within a crown palisade or upon a red sandstone rock between two sprigs of bog myrtle, an oystercatcher rising, wings elevated and addorsed, all proper
Mantling: Vert lined or
Supporters: On the dexter a lion rampant gules gorged with a collar dancetty of two points downward argent; on the sinister, a lion rampant of the last gorged with a like collar of the first, both holding in the interior forepaw a croizer head outward or