Westclox Models with Model Number: 21
There are 2 Models with model number 21 in the database
America style 4 alarm clock in green case with plain dial. Base shaped like two stacked rectangles, alarm hand on back.
Dates made: 1933 - 1935
Spur style 2 alarm clock in gold bronze case with luminous dial. Square polished brass bezel surrounding the plastic lens.
Dates made: 1959 - 1962