English: Four prong standard Telephone plug as used in Bell System phones from mid 1960s to mid 1970s, on a line cord having a five pin flat plug at the phone end as used at that time on Trimline desk phones.
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2008-03-04 19:53 Jim.henderson 1052×1024× (167056 bytes) Four prong standard [[Telephone plug]] as used in [[Bell System]] phones from late 1960s to mid 1970s, on a line cord from the early 1970s having a five pin flat plug at the phone end as used at that time
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{{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|Four prong standard en:Telephone plug as used in en:Bell System phones from mid 1960s to mi