English: Bilston was a township in the ancient parish of Wolverhampton in the county of Staffordshire. Bilston became an Urban District in 1894, and became a Municipal Borough in 1933. In 1966 it was incorporated into Wolverhampton.
The Bilston flag is based on the coat-of-arms of the former Bilston Urban District Council which you can see here: https://www.heraldry-wiki.com/heraldrywiki/wiki/Bilston This in turn is based on the arms borne by Sir Walter de Bilston, a local landholder.
The central image is a Stafford Knot, which is flanked by two Martlets - a mythical bird without feet which never roosts from the moment of its drop-birth until its death-fall. It is a compelling allegory for continuous effort.
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