These four unsilvered, transparent glass bell ornaments are from the 1940s, made during WWII. Silver nitrate (or mercury silver) was needed for the military and American ornament manufacturers had to use transparent or opaque colors for their ornaments until the war ended in 1945.
The ornaments are just under 3 inches high. All are decorated with painted horizontal rings: yellow on purple, lime green on magenta pink, white on red, and yellow on blue. Half of one stripe on the purple ornament has flaked off, that's the only real wear. The red bell has a sprig of wired tinsel inside. No chips or breaks.