Hemingray.info
 
CD 115
Hemingray №10
  • [045] Tall Variant
    This is the [045] variant, characterized by a body that is 1/4" taller, has a rounded dome, and larger wire grooves. This was possibly an early prototype to what would eventually become the more common CD 115. This particular specimen was discovered in an antique shop in Colorado Springs in 2012.
  • [152] Large Upper Wire Ridge Variant
    This is the [152] variant, characterized by an upper wire ridge that is larger than the middle and lower ridges. This variant was given its own EIN in 2011.
Insulator Facts

Dimensions:3 1⁄2" H × 2 3⁄8" W
Primary Embossing: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.
HEMINGRAY
Years Produced: c.1914-1950s
Style Identifiers: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.
10, 16 (error)
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 (Exchange)
Trade Name: Exchange Line
Hobby Nickname: Exchange
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.
$1-2500*
* Please Note: This insulator style is one of Hemingray's most common insulators. Please visit the Common Hemingrays page for more information.
Insulator Overview

The Hemingray No.10 is a common style known as an exchange line insulator. Around 1914, the practice of using twisted wire pairs instead of two drop-wires created the need for this style. The wire grooves are close together to accommodate the twisted wire pair.
Known Embossings (29)
Primary EmbossingThe 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.
EINThe Embossing Index Number (EIN) is a unique number assigned by the collecting hobby to each distinct embossing for an insulator design. It is normally shown in brackets, e.g. [050].
EmbossingMost common terms:
(F-Skirt): Front Skirt
(R-Skirt): Rear Skirt
/: New line of embossing
{}: Special note (not embossed on the insulator)
[#]: Represents a number

Other terms:
{MLOB}: Mold Line Over Base
(F-Crown): Front Crown
(R-Crown): Rear Crown
(F-Umbrella): Front Umbrella
(R-Umbrella): Rear Umbrella
BaseThe base is the bottom of the insulator. Hemingray made 4 different types of bases:

1. SDP: Sharp Drip Points
2. RDP: Round Drip Points
3. CB: Corrugated Base
4. SB: Smooth Base
Year AddedThis is the year that this embossing was officially recognized and added to the McDougald (1991-2008) or Briel (2011-2023) insulator price guides. It is not necessarily the year this embossing was discovered.
Photo
Status = In my collection

If the value in this column says WANTED, then that specific insulator is on my wanted list! If you have that insulator and would like to sell it, click on the WANTED link to submit photos and contact me.
HEMINGRAY [010] (F-Skirt) HEMIGRAY {Note spelling} (R-Skirt) PATENTED/MAY 2 1893 SDP - No Photo
HEMINGRAY [020] (F-Skirt) HEMINGRAY (R-Skirt) № 10 SDP - Photo
HEMINGRAY [025] (F-Skirt) HEMINGRAY [Vertical bar on inside of front skirt] (R-Skirt) № 10 SDP 2015 No Photo-
HEMINGRAY [030] (F-Skirt) HEMINGRAY (R-Skirt) PATENTED SDP - No PhotoWANTED
($20 Reward)
HEMINGRAY [040] (F-Skirt) HEMINGRAY (R-Skirt) PATENTED/MAY 2 1893 SDP - Photo
HEMINGRAY [042] (F-Skirt) HEMINGRAY [Vertical bar on inside of front skirt] (R-Skirt) PATENTED/MAY 2 1893 SDP 2019 No Photo-
HEMINGRAY [045] (F-Skirt) HEMINGRAY (R-Skirt) PATENTED/MAY 2 1893 {Variant that is 1/4" taller and has a rounded dome} SDP SDP 2015 No PhotoWANTED
($500 Reward)
HEMINGRAY [050] (F-Skirt) HEMINGRAY-10 (R-Skirt) MADE IN U.S.A. RDP - Photo
HEMINGRAY [055] (F-Skirt) HEMINGRAY-10 (R-Skirt) MADE IN U {Missing '.S.A.'} RDP RDP 2015 Photo
HEMINGRAY [060] (F-Skirt) HEMINGRAY-10 (R-Skirt) MADE IN U.S.A. SDP - Photo
HEMINGRAY [062] (F-Skirt) HEMINGRAY-10 (R-Skirt) MAD IN U.S.A. {Note spelling} SDP 2019 No Photo
HEMINGRAY [065] (F-Skirt) HEMINGRAY-10 (R-Skirt) MADE IN U.S. {'A.' is missing} SDP 2019 No PhotoWANTED
($75 Reward)
HEMINGRAY [070] (F-Skirt) HEMINGRAY-10 (R-Skirt) MADE IN U.S.A./[# and dots] CB - No Photo-
HEMINGRAY [080] (F-Skirt) HEMINGRAY-10 (R-Skirt) MADE IN U.S.A./[# and dots] SB - Photo
HEMINGRAY [090] (F-Skirt) HEMINGRAY-10 (R-Skirt) [#]-38./MADE IN U.S.A. SB - Photo
HEMINGRAY [100] (F-Skirt) HEMINGRAY-10 (R-Skirt) [#]-38 SB - Photo
HEMINGRAY [110] (F-Skirt) HEMINGRAY-10/[# and dots] (R-Skirt) MADE IN U.S.A./[#] RDP - Photo
HEMINGRAY [120] (F-Skirt) HEMINGRAY-10/[# and dots] (R-Skirt) MADE IN U.S.A. RDP - Photo
HEMINGRAY [125] (F-Skirt) HEMINGRAY-10/[#] (R-Skirt) MADE IN U.S.A./[#] SB 2015 No Photo-
HEMINGRAY [130] (F-Skirt) HEMINGRAY-10/['[#]' blotted out] (R-Skirt) MADE IN U.S.A./[# and dots] SB - No Photo-
HEMINGRAY [140] (F-Skirt) HEMINGRAY-16 {Note '16' style number} (R-Skirt) MADE IN U.S.A./[# and dots] SB - Photo
HEMINGRAY [150] (F-Skirt) HEMINGRAY/MADE IN U.S.A. (R-Skirt) № 10 SDP - Photo
HEMINGRAY [152] (F-Skirt) HEMINGRAY / MADE IN U.S.A. (R-Skirt) №10 {Top wire ridge is larger in diameter than middle & lower wire ridge} SDP - Photo
HEMINGRAY [155] (F-Skirt) HEMNGRAY-10 {Note spelling} (R-Skirt) MADE IN U.S.A. SDP - Photo
HEMINGRAY [160] (F-Skirt) HENNGRAY-10 {Note spelling} (R-Skirt) MADE IN U.S.A.
Note: I believe this embossing may be the same as [155]. Since the "M" and "I" are stamped over each other, it could be interpreted as an "N".
SDP - No PhotoWANTED
($150 Reward)
HEMINGRAY [170] (F-Skirt) HEWINGRAY {Note spelling} (R-Skirt) № 10 SDP - Photo
HEMINGRAY [180] (F-Skirt) HEWINGRAY {Note spelling}/MADE IN U.S.A. (R-Skirt) № 10 SDP - Photo
HEMINGRAY [185] (F-Skirt) [# and dots]/HEMINGRAY-10 (R-Skirt) MADE IN U.S.A. RDP 2015 No Photo-
HEMINGRAY [190] (F-Skirt) [# and dots]/HEMINGRAY-10 (R-Skirt) MADE IN U.S.A./[#] RDP 2015 No Photo-
Removed Embossing

The following embossing(s) were removed from the price guide because they could not be verified to exist, were consolidated with other embossings, or were otherwise ambiguous/inaccurate. They are preserved here for historical purposes.


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Primary EmbossingThe 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.
EINThe Embossing Index Number (EIN) is a unique number assigned by the collecting hobby to each distinct embossing for an insulator design. It is normally shown in brackets, e.g. [050].
EmbossingMost common terms:
(F-Skirt): Front Skirt
(R-Skirt): Rear Skirt
/: New line of embossing
{}: Special note (not embossed on the insulator)
[#]: Represents a number

Other terms:
{MLOB}: Mold Line Over Base
(F-Crown): Front Crown
(R-Crown): Rear Crown
(F-Umbrella): Front Umbrella
(R-Umbrella): Rear Umbrella
BaseThe base is the bottom of the insulator. Hemingray made 4 different types of bases:

1. SDP: Sharp Drip Points
2. RDP: Round Drip Points
3. CB: Corrugated Base
4. SB: Smooth Base
Year Removed
n/a
Known Colors (13)
ColorThe color of the insulator.
Aqua
Blue Aqua
Clear
Green
Green Aqua
Hemingray Blue
Ice Aqua
Ice Blue
Ice Green
Light Aqua
Light Green
Pink Tint
Straw