This bold and decorative hook dates from the end of the art deco period, the lat 1940's. The octagonal pattern seen both on the back plate as well as the body was popularized by American Standard in the early 1920's and became nearly ubiquitous in American bathrooms throughout the 1950's.
Condition: Good. Chrome plating is almost entirely intact as from light pitting and surface wear.
Dimensions: Base 2 1/2" wide. Projection 2 1/4". Overall Height 4"