The oldest source of information about the history of the coats of arms of Bielsk is a town stamp on a document from 1544. This stamp presents a shield wrapped with a band and a picture of a jumping animal directed to the left.
For many times researchers of the coat of arms of Bielsk tried to interpret this image of the animal. One group thought it was an ox, others – a bison or an aurochs. They couldn’t come to an agreement, and that is why for hundreds of years the coat of arms changed several times.
Eventually, the problem of the image was solved by the act Nr XXV/149/00 passed by the town council on 30 of November 2000, which approved the image of a red aurochs facing left with his head turned slightly forward to the spectator on a white shield.