Antique French ‘A. Pottier’ enamel name plaque

An early 20thC French enamel door plaque, with bold black letters on a white ground reading the name - ‘A. Pottier’.
Dimensions:
17cm x 5.5cm
Condition:
Some slight nibbling and rusty wear to the enamel around the edge, particularly on the bottom left corner around the fixing hole where there is a small chip to the enamel, along with age related wear and marks. Otherwise in nice original condition and fairly clean.