Telephone insulators from Germany
By Paolo De Pasqual; posted May 6, 2012
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"Modern" insulators found in eastern Germany (DDR) From the left: D.P.R.K. - RMK 130 (model type) - 1982; Bulgarian made 1975, Bulgaria made type RMK 130, Rosenthal Selb. RMK 130 means for hemispherical head, height of insulator 130 mm. |