This is a light purple CD 121 - AM TEL & TEL CO - has some minor wire groove rubs and an 1/8" bruise at the bottom of the upper part of the wire. For some added character there is a cool straw line on the dome and front crown area and there is even an amber line below the embossing.

This insulator would look good at your house!!

The Price Guide lists these at $50-75 - this piece can be yours for $30 + shipping. Payment can be made by check, money order or PayPal.