CD 121

CD 121
Hemingray №16

Dimensions:	3 3⁄4" H × 2 1⁄2" W
Primary Embossings:The Primary Embossing is typically found on the front of the insulator and usually identifies either the manufacturer (such as "Hemingray") or the company that the insulator was made for (such as "AM.TEL.&TEL.CO.") Insulators with No Name or No Embossing are denoted as such.	AM. TEL. & TEL. CO. HEMINGRAY
Years Produced:	c.1890s–1920s
Style Identifier:Hemingray often used style numbers, letters, words, or a combination to differentiate their insulator styles (such as: T.S., E2, № 1 Provo Type, Muncie Type, etc.) These are often, but not always, embossed on the insulator.	16
Rarity Scale 0. No specimens known 1. Extremely Common (millions known) 2. Very Common 3. Common 4. Fairly Common 5. Uncommon 6. Very Uncommon 7. Rare (dozens known) 8. Very Rare (less than a dozen known) 9. Extremely Rare (2 or 3 known) 10. Unique (only one known)	Extremely Common (1/10)*
Usage:	Telephone (Long Distance)
Trade Name:	Long Distance
Hobby Nickname:	Toll
Weight:Weight is an average only (or as specified in original catalogs.) Weight may vary substantially depending on many factors, including amount of glass poured, depth of the threads, mold variations, added hardware such as brass or lead bushings, etc.	14.0 oz.
Value Range: This is an estimated value range only, based on historical hobby collecting data. Insulator values vary widely depending on many factors, including embossing, color, condition, mold variations, manufacturing anomalies, and other attributes. Please visit the Hemingray Values page for more information.	$1-500*

This common long distance toll style was produced by Hemingray as No.16, and was later replaced by CD 122 in the 1920s. Hemingray and Brookfield both produced this style for American Telephone and Telegraph Company as well. A generally easy well to tell if an AM. TEL. & TEL. CO. insulator was manufactured by Hemingray is the "O" in "CO" will always be uppercase.