You are bidding on a vintage glass insulator-
Brand/Embossing- Brookfield, OX on top of dome
Color- Aqua blue/green with amber swirls and two big white blob inclusions
CD Number- 121
Dimensions (Height x Base Diameter)- 3-3/4" x 2-1/2"
Condition- Very good condition for age, no chips however there is a crack.
Please note that I am not an expert or collector of insulators. The information I have provided, such as the CD number, is what I could find from online research. Please make sure you review the pictures, and measurements to make sure that this is the type of insulator you want to purchase. Also, color and condition are subjective, one man's turquoise may be another man's teal green. Let the pictures do the talking, and if you have any questions please ask them before purchasing.