Plummer Tower was part of the old walls of Newcastle-upon-Tyne, which were built from the mid-13th century to the middle or late 14th century. It was converted into a meeting house in the latter part of the 17th century by the Company of Cutlers, and a facade was added by the Company of Masons in the mid-18th century. The older parts of the building are Grade I Listed.
This 1964 photo shows the tower in use as a museum, while a more recent image shows the museum sign was removed. The museum seems to have been open until at least 1985, when Kenneth Hudson and Ann Nichols’ Directory of Museums & Living Displays listed it as displaying 18th-century period rooms. But beyond that we know nothing about what this museum contained. If you have any information about the Plummer Tower Museum, please get in touch.