D_518 Extended Skirt Variant
Taper Top Variant
Mini Mold Variant| Dimensions: | 2 3⁄4" H × 3" 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. |
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| Years Produced: | c.1930s-1940s |
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. | D-518, 518 |
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) |
Fairly Common (4/10) |
| Usage: | Dead End Spool (Secondary Rack) |
| Trade Name: | Secondary Rack Spool Insulator |
| Series: | 510 |
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. |
$5-200 |
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] | (Bottom) HEMINGRAY - 518 MADE IN U.S.A. {Embossing is on the flat end} | SB | - |  | ✓ |
| NEW! HEMINGRAY | [020] | (Upper wire ridge) [Tiny #] (Base) HEMINGRAY-518 MADE IN U.S.A. Note: Discovered at the 2021 National. My specimen has a tiny '5' mold number, and also has no threads inside the bolt hole. |
BE | 2023 | No Photo | ✓ |
| NO EMBOSSING | [010] | [No embossing] | SB | - |  | ✓ |
| NO NAME | [010] | (F-Below wire groove) D-518 [# and dots] (R-Below wire groove) MADE IN U.S.A. {Hemingray product} | SB | - |  | ✓ |
| NEW! NO NAME | [013] | (F-Lower wire ridge) D_518 (R-Lower wire ridge) [#] {Hemingray product} | SB | 2023 | No Photo | ✓ |
| NO NAME | [015] | (F-Below wire groove) D_518.4 (R-Below wire groove) MADE IN U.S.A. {'N'/'4'} {Hemingray product} Note: More mold numbers have been found with this embossing; this will be corrected in a future edition of the price guide. |
SB | 2019 | No Photo | ✓ |
| NO NAME | [020] | (F-Above wire groove) [#] {'7' or upside down '10'} Note: Upside-down 10 added as a possible number in the 2019 price guide. |
SB | 2015 | No Photo | WANTED ($40 Reward) |
| ST.LOUIS MALLEABLE | [010] | (F-Above wire groove) [#] (Bottom) ST.LOUIS MALLEABLE CASTING CO./ST.LOUIS MO. | SB | - |  | ✓ |
| ST.LOUIS MALLEABLE | [020] | (F-Below wire groove) D-518 [#] (R-Below wire groove) MADE IN U.S.A. (Bottom) ST.LOUIS MALLEABLE CASTING CO./ST.LOUIS MO. | SB | - |  | ✓ |
ColorThe color of the insulator. |
|---|
| Carnival |
| Clear |
| Dark Amber |
| Flashed Amber |
| Green Tint |
| Ice Aqua |
| Ice Blue |
| Light Flashed Amber |
| Light Straw |
| Red Amber |
| Straw |
| Straw Tint |
| Yellow Amber |