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CD 155 HEMINGRAY-42, Ice Blue, RDP |
Bill Meier |
December 17, 2023 |
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360 |
1880-City of Washington map of telegraph lines. Source: Library of Congress |
Thomas Palone |
December 14, 2023 |
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154 |
1883 Worlds Fair Electric Subways |
Thomas Palone |
December 7, 2023 |
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167 |
1883 Worlds Fair Electric Subways |
Thomas Palone |
December 7, 2023 |
December 8 |
161 |
Massachusetts Glass Company Trade Card, c.1880. |
Joe Maurath, Jr. |
November 26, 2023 |
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145 |
N.E.G.M. Co CD 251 pin hole variations |
Dante Di Midio |
November 2, 2023 |
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153 |
New Granite Glass Works, Stoddard, NH 1861 |
John De Sousa |
November 1, 2023 |
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139 |
John Brown's Raid |
Michael Gibbons |
November 1, 2023 |
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146 |
Cooke Sleeve Insulator Colors |
Chris Renaudo |
October 30, 2023 |
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149 |
Bay State Glass Works Trade Card, Rear View. 1879-1880. |
Joe Maurath, Jr. |
October 22, 2023 |
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131 |
Bay State Glass Works Trade Card, Front View. 1879-1880. |
Joe Maurath, Jr. |
October 22, 2023 |
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119 |
1874 The Erie Railway Tourist Telegraph Reference |
Thomas Palone |
October 9, 2023 |
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156 |
The "ORIGINAL" Telephone Display |
Michael Gibbons |
September 14, 2023 |
November 1 |
179 |
Locke No. 44 (U-309) |
Elton Gish |
April 13, 2023 |
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315 |
Group of Porcelain Pin and Post Type Insulators Used for Electric Utility Testing, c.1935. |
Joe Maurath, Jr. |
April 1, 2023 |
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171 |
Group of Glass and Porcelain High Voltage Insulators Used for Utility Testing, c.1935. |
Joe Maurath, Jr. |
April 1, 2023 |
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154 |
Montana State College, Glass and Porcelain Insulators Used for Electrical Engineering. |
Joe Maurath, Jr. |
April 1, 2023 |
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145 |
Horatio Read's Insulator Patent Page, Closeup of Description and Text. May 29, 1871. |
Joe Maurath, Jr. |
April 1, 2023 |
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128 |
Horatio Read's Improved Insulator Patent Page Overview, May 30, 1871. |
Joe Maurath, Jr. |
April 1, 2023 |
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137 |
Second photo of a Lundin cut-out in service with Hemingray CD 1104 spools |
Michael Spadafora |
February 23, 2023 |
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168 |
A Lundin Absolute cut-out in service with CD 1104 Hemingray spools |
Michael Spadafora |
February 23, 2023 |
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160 |
Fort Wayne Absolute Cut-out in service |
Michael Spadafora |
February 22, 2023 |
February 23 |
176 |
General Electric absolute cut-out. GE factory archive photo. |
Michael Spadafora |
February 22, 2023 |
February 23 |
158 |
Underside view of a Lundin hanger cut-out |
Michael Spadafora |
February 22, 2023 |
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140 |
Lundin Electric and Machien Co absolute street lamp cut-out with CD 1104 Hemingray spools. |
Michael Spadafora |
February 22, 2023 |
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136 |
Three types of late General Electric absolute lamp cut-outs |
Michael Spadafora |
February 22, 2023 |
February 23 |
134 |
General Electric absolute cut-out street lamp hanger with Hewelett type insulator. |
Michael Spadafora |
February 22, 2023 |
February 23 |
123 |
General Electric Absolute cut out hanger with CD 281 Heningray |
Michael Spadafora |
February 22, 2023 |
February 23 |
138 |
Absolute cut-out hangers for series street lamps- A photo essay. |
Michael Spadafora |
February 22, 2023 |
February 23 |
137 |
Western Union Telegraph Company |
Stephen Bobb |
January 24, 2023 |
January 30 |
183 |
Railroad Communications Pole and Openwire Circuits Detail Data Sheet. |
Joe Maurath, Jr. |
November 21, 2022 |
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173 |
Mount Washington telegraph line |
Thomas Palone |
November 21, 2022 |
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202 |
Zinc Cartoon ? |
Michael Gibbons |
October 26, 2022 |
November 29 |
212 |
California Color Guidance: Commonly Misidentified C.G.I.Co. Pony Colors CD 102 |
Colin Jung |
October 23, 2022 |
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235 |
Drawing of non-existent Armstrong Deep Amber CD 154 on page 9 in Stuart's Insulator Guide |
David Whitten |
September 25, 2022 |
September 30 |
314 |
CD 150 BARCLAY compared to BROOKFIELD |
Bill Meier |
September 23, 2022 |
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340 |
CD 150 BARCLAY |
Bill Meier |
September 23, 2022 |
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362 |
CD 206.6 Harlow |
Bill Meier |
August 5, 2022 |
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262 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
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248 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
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189 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
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174 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
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170 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
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165 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
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167 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
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163 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
July 26 |
164 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
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162 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
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154 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
|
156 |
Smithsonian Research Trip Feb,2013 |
Stephen Bobb |
July 25, 2022 |
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151 |