Per the Glass Candlestick Book Vol. III: Part of the Teardrop pattern, 6" tall with 5" round foot. Made 1938 thru the 1940's and possibly later. Known in crystal, amber, ruby and Colonial (light) blue, other colors are possible. Offered with at least 2 etches, #26 Meadow Wreath and #29 Florentine - and 3 cuttings.
This example is 5 5/8 inches tall in crystal with a Cornflower cut..