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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. | Type E was dropped after 1968; its replacement, [[1A7|Type 1A7]] had been available for a few years. | ||
==Links== | ==Links== | ||