Hemingray.info
 
CD 1030
  • Photo credit Bill Meier of Insulators.info.
  • [010] Variant
    This variant has the knurled, threaded insert.
  • [030] Variant
    This variant has a machine screw embedded in the base.
  • [040] Variant
    This variant has a slotted base and round eyelet hole.
  • [050] Variant
    This variant has a slotted base and standard square eyelet hole.
Insulator Facts

Dimensions:3 11⁄16" H × 2 5⁄8" 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.
NO EMBOSSING
Years Produced: c.1940s
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)
Rare (7/10)
Usage: Power
Value Range: Not Available
Insulator Overview

This is an uncommon, experimental style made by Hemingray, which apparently went through several design iterations: six different designs have been found to date, with either a square or round eyelet to affix the wire, and various types of bases and methods to affix the insulator to a building, tree, pole, etc.

Related Links:
Known Embossings (6)
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.
NO EMBOSSING [005] [No embossing] {Double hex nut in base; round hole} {Hemingray product} SB 2019 No PhotoMOST WANTED
($800 Reward)
NO EMBOSSING [010] [No embossing] {Knurled, threaded insert} {Hemingray product} SB - No PhotoMOST WANTED
($800 Reward)
NO EMBOSSING [020] [No embossing] {Lag screw in base} {Hemingray product} SB - No PhotoMOST WANTED
($800 Reward)
NO EMBOSSING [030] [No embossing] {Machine screw in base} {Hemingray product} SB - No PhotoMOST WANTED
($800 Reward)
NO EMBOSSING [040] [No embossing] {Slotted base; round hole} {Hemingray product} SB - No PhotoMOST WANTED
($800 Reward)
NO EMBOSSING [050] [No embossing] {Slotted base} {Hemingray product} SB - No PhotoMOST WANTED
($800 Reward)
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 (4)
ColorThe color of the insulator.
Blue Tint
Clear
Green Tint
Ice Blue