The passenger steam locomotive "S-u" ("Sormovo's powered locomotive") produced by BMZ (Bryansk
Engineering Works, Russia) in 1925-1930. This locomotive was designed in Kolomna city, 
and it was the first locomotive, designed with the most famous Russian locomotive
designer L.S. Lebedyansky. S-u had 15% more efficiency than the Russian passenger prototypes.
In 1925 it was one of the best in Europe. Its beautiful exterior is calling now the nostalgic
reminiscences of the all old railroad men.
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Photo: unknown author, 1925.
Scan by Oleg V. Izmerov <press@admin.bryansk.ru>