<page_title> SECR N1 class </page_title> <section_title> N1 class construction history </section_title> <table> <cell> SECR <col_header> Batch </col_header> </cell> <cell> 822 <col_header> SECR/SR numbers </col_header> </cell> <cell> SECR N class locomotive No. 822 modified during construction to 3-cylinder arrangement, became N1 prototype <col_header> Notes </col_header> </cell> </table>
The prototype was constructed as part of a batch of class locomotives of the SECR, and became No. 822 within this series.