"What can be more palpably absurd than the prospect held out of locomotives traveling twice as fast as stagecoaches?"
The Quarterly Review
; March edition, 1825
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Class 524 is a continuation of Class 523. Class 523, subclass
1 is the parent subclass of all the Class 524 subclasses.
The Class 523 Class Definition is applicable to both Class
523 and Class 524.