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| Viewing an insulator underwater |
Bill Meier |
March 2, 2024 |
March 3 |
298 |
| Computer generated color reference |
Bill Meier |
March 2, 2024 |
March 3 |
289 |
| Glass "Egg" Insulator - 1851 - CD 700 |
Bill Meier |
February 23, 2024 |
|
268 |
| CD 201 Loopy Swan 2 |
Ralph Smith |
January 26, 2024 |
|
155 |
| Hemingray CD 302 - "2" embossing |
Jeff Sherry |
January 26, 2024 |
|
142 |
| "Loopy 2" in MAY 2, 1893 |
Bill Meier |
January 25, 2024 |
|
296 |
| CD 221 Hemingray in white opalescent! |
Bill Meier |
January 16, 2024 |
|
208 |
| Then and now: Ohio Brass 1928 |
Bill Meier |
January 16, 2024 |
|
161 |
| A pair of colorful CD 317 Chambers candlesticks |
Bill Meier |
December 17, 2023 |
|
430 |
| CD 155 HEMINGRAY-42, Ice Blue, RDP |
Bill Meier |
December 17, 2023 |
|
415 |
| 1880-City of Washington map of telegraph lines. Source: Library of Congress |
(private) |
December 14, 2023 |
|
191 |
| 1883 Worlds Fair Electric Subways |
(private) |
December 7, 2023 |
|
236 |
| 1883 Worlds Fair Electric Subways |
(private) |
December 7, 2023 |
December 8 |
247 |
| Massachusetts Glass Company Trade Card, c.1880. |
Joe Maurath, Jr. |
November 26, 2023 |
|
189 |
| N.E.G.M. Co CD 251 pin hole variations |
(private) |
November 2, 2023 |
|
329 |
| New Granite Glass Works, Stoddard, NH 1861 |
John De Sousa |
November 1, 2023 |
|
177 |
| John Brown's Raid |
(private) |
November 1, 2023 |
|
196 |
| Cooke Sleeve Insulator Colors |
Chris Renaudo |
October 30, 2023 |
|
193 |
| Bay State Glass Works Trade Card, Rear View. 1879-1880. |
Joe Maurath, Jr. |
October 22, 2023 |
|
163 |
| Bay State Glass Works Trade Card, Front View. 1879-1880. |
Joe Maurath, Jr. |
October 22, 2023 |
|
151 |
| 1874 The Erie Railway Tourist Telegraph Reference |
(private) |
October 9, 2023 |
|
196 |
| The "ORIGINAL" Telephone Display |
(private) |
September 14, 2023 |
August 18 |
234 |
| Locke No. 44 (U-309) |
Elton Gish |
April 13, 2023 |
|
368 |
| Group of Porcelain Pin and Post Type Insulators Used for Electric Utility Testing, c.1935. |
Joe Maurath, Jr. |
April 1, 2023 |
|
212 |
| Group of Glass and Porcelain High Voltage Insulators Used for Utility Testing, c.1935. |
Joe Maurath, Jr. |
April 1, 2023 |
|
190 |
| Montana State College, Glass and Porcelain Insulators Used for Electrical Engineering. |
Joe Maurath, Jr. |
April 1, 2023 |
|
182 |
| Horatio Read's Insulator Patent Page, Closeup of Description and Text. May 29, 1871. |
Joe Maurath, Jr. |
April 1, 2023 |
|
159 |
| Horatio Read's Improved Insulator Patent Page Overview, May 30, 1871. |
Joe Maurath, Jr. |
April 1, 2023 |
|
171 |
| Second photo of a Lundin cut-out in service with Hemingray CD 1104 spools |
Mike Spadafora |
February 23, 2023 |
|
215 |
| A Lundin Absolute cut-out in service with CD 1104 Hemingray spools |
Mike Spadafora |
February 23, 2023 |
|
203 |
| Fort Wayne Absolute Cut-out in service |
Mike Spadafora |
February 22, 2023 |
February 23 |
216 |
| General Electric absolute cut-out. GE factory archive photo. |
Mike Spadafora |
February 22, 2023 |
February 23 |
220 |
| Underside view of a Lundin hanger cut-out |
Mike Spadafora |
February 22, 2023 |
|
175 |
| Lundin Electric and Machien Co absolute street lamp cut-out with CD 1104 Hemingray spools. |
Mike Spadafora |
February 22, 2023 |
|
177 |
| Three types of late General Electric absolute lamp cut-outs |
Mike Spadafora |
February 22, 2023 |
February 23 |
175 |
| General Electric absolute cut-out street lamp hanger with Hewelett type insulator. |
Mike Spadafora |
February 22, 2023 |
February 23 |
163 |
| General Electric Absolute cut out hanger with CD 281 Heningray |
Mike Spadafora |
February 22, 2023 |
February 23 |
177 |
| Absolute cut-out hangers for series street lamps- A photo essay. |
Mike Spadafora |
February 22, 2023 |
February 23 |
179 |
| Western Union Telegraph Company |
Stephen Bobb |
January 24, 2023 |
January 30 |
231 |
| Railroad Communications Pole and Openwire Circuits Detail Data Sheet. |
Joe Maurath, Jr. |
November 21, 2022 |
|
209 |
| Mount Washington telegraph line |
(private) |
November 21, 2022 |
|
256 |
| Zinc Cartoon ? |
(private) |
October 26, 2022 |
August 19 |
259 |
| California Color Guidance: Commonly Misidentified C.G.I.Co. Pony Colors CD 102 |
Colin Jung |
October 23, 2022 |
June 23 |
304 |
| Drawing of non-existent Armstrong Deep Amber CD 154 on page 9 in Stuart's Insulator Guide |
David Whitten |
September 25, 2022 |
September 30 |
365 |
| CD 150 BARCLAY compared to BROOKFIELD |
Bill Meier |
September 23, 2022 |
|
402 |
| CD 150 BARCLAY |
Bill Meier |
September 23, 2022 |
|
419 |
| CD 206.6 Harlow |
Bill Meier |
August 5, 2022 |
|
310 |
| Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
|
280 |
| Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
|
216 |
| Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
|
202 |
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Reference Information
