Russian medium telegraph insulator (30s)
By George Sukhoff; posted December 15, 2011
View Original: Click to zoom, then click to magnify (700 x 598) 136KB
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TF-2 (ТФ-2). This 1937 version is almost identical to Kuznecov's TF-2. |
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TF-2 (ТФ-2). This 1937 version is almost identical to Kuznecov's TF-2. |