Brookfield Glass Insulator Vintage Dark Green with XI or IX on top No damage

This is a beautiful Brookfield dark green glass insulator Stands 3.5 inches tall. Base is just under 2.25 inches wide. Beautiful condition. No Damage, chips, cracks, repairs, etc Letters written on the outside in black are for my inventory purposes and will be removed before shipment. Please let me know if there is anything else you would like to know before bidding. Thank you.