A Very Nice Whitall Tatum No. 3 Glass Insulator. Clear Glass. Very Good Condition. No Cracks, no Major Blemishes. This CD115 design insulator was used for exchange telephone circuits. These insulators have embossed 1930's and 1940's date codes. The only care they will require is an occasional cleaning gently wiping with a soft damp cloth. An insulator on your desk makes a great conversation piece! And a great paperweight! These are ~2.25" wide x 3.25" tall. The insulators will be from our stock of are both Whitall Tatum #9 (both shown in photos). Please note that many of our items are vintage and many are used. The sands of time have an effect on materials due to years of weather, handling, storage technique, and/or natural degradation of the material itself. We try and accurately describe the items we offer, but sometimes we goof and make a mistake. Due to differences in lighting, cameras, display devices, and yes, human eyes, there may be differences of opinion as to the attributes of a particular item. If you are dissatisfied and believe our assessment of an item is incorrect, please contact us. We will do all we can to make it right. We want to earn the privilege of having you as our customer.