The name Westclox was first used on dials ca. 1917. At first, the font was italic. Ca. 1923 the font became Roman. Starting in 1927, the x in Westclox had a tail on it.
Westclox logo on dial through ca. 1931 Westclox in italics:
The name Westclox is printed in an italic typeface.
Westclox logo on dial through ca. 1931 Westclox in Roman:
The name Westclox is printed in a Roman typeface. Regular x in Westclox.
Westclox logo on dial through ca. 1931 Westclox logo has a tail on the x.:
Roman The name Westclox is printed in a Roman typeface. The x in Westclox has a tail.