This is a glass insulator marked - Hemingray 45.  Made in USA 37 - 40.  In very good condition for it's age...there is a small flea bite on the inside bottom...please see pictures to confirm condition.

Measures:  3 3/4" tall x 3 5/8" circumference at widest point

Glass insulator -Hemingray 45

SKU: dp111-15