New Haven Alarm Clock

This is a New Haven alarm clock in a two-piece black catalin art deco case.
The front piece is exactly square at 4 3/16" X 4 3/16", the bottom piece measures 4 3/4" X 2 1/2" - both pieces are 1/2" thick and there are two brass "foot" pieces connecting the two pieces together. All together, it stands about 4 5/8" tall. The clockface itself is 2 3/3" X 2 3/8".
The back of the clock housing is black-painted metal and all the set buttons are brass.
Printed on the dial face is "New Haven Alarm" and below the 6 o'clock is "Made in U.S.A." - Circa unknown except is pre-1960