There are 3 styles in the Westclox Monitor Clock Style Series
Characteristics:
6 inch tall wood caseDates made:
1922 - 1923
The first Monitor was a wood cased time only clock made for a short time. Style 2 Monitor was a low-priced top bell alarm clock with legs, and style 3 Monitor was an alarm clock with legs but no bell or ring on top.
When identifying a Monitor style, observe the case shape and ignore the case and dial color, because some styles were made in various case and dial colors, as shown in the detail page for each style.
The trademark MONITOR was issued to The Western Clock Mfg. Co. on August 2, 1910, number 79,089. The registration contains the statement "The trade-mark has been continuously used in our business since March 23rd, 1910."
Note that the Monitor name was also used on a non-descript pocket watch from 1927 - 1928, and later for commercial electric wall clocks.