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The nomenclature was revised after just a few months, to 53/54E.   
The nomenclature was revised after just a few months, to 53/54E.   
In 1959, when the A-suffix mainframes came out, all plugins dropped the "53/54".   
In 1959, when the A-suffix mainframes came out, all plugins dropped the "53/54".   
Type E was dropped after 1968; its replacement, [[1A7|Type 1A7]] had been available for a few years.
Type E was dropped after 1968; its replacement, [[1A7|Type 1A7]], had been available for a few years.


==Links==
==Links==
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