There are 3 Models with model number 20 in the database
America alarm clock Style 2 Plain – Wide, rounded front lip. Nickel plated one-piece brass case.
Dates made: 1927 - 1929
America alarm clock Style 2a Nickel Plain – alarm shutoff on side of case, leg model, top bell, wide rim case front.
Dates made: 1929 - 1932
Spur style 2 alarm clock in antique white case with luminous dial. Square polished brass bezel surrounding the plastic lens.
Dates made: 1958 - 1961
