The ‘Stafford Knot’ is the symbol of Staffordshire - as I like to point out in this blog quite frequently! The symbol is at least 500 years old (though some argue its origins go back a thousand years). Everywhere round here that a reference to the county comes up in a graphic form, you’re likely to see the Knot.
These old gates mark the entrance to a railway property in Stoke, which would have been owned by the North Staffordshire Railway Company up to the company's demise in the last century. The NSR used the Knot as a proud statement of its origins.
Link: Stafford Knot