Photos

The smaller one... Smaller, because it isn't a "normal" locomotive, but a narrow-gauge. You know, most of the railways in Europe are standard-gauge (1435 mm), there's a few broad-gauge, mostly in the ex-Soviet countries (1609 mm), and everything, which is smaller than 1435 mm is called "narrow-gauge" (300, 500, 600, 760, 900, 1000 mm). In Hungary 600 and 760 mm became the general narrow-gauge tracks.
"The Narrow-Gauge Railways of Nyíregyháza and Environs" (sub-company of MÁV - Hungarian State Railways) is a 760 mm line and is exactly 102 years old. There's a main (51 km) and a side-line (15 km) remained from the originally 180 km long rail system. Photo was done on "Nyíregyháza Átrakó" terminus.
Locomotive is an Mk48.2000 type diesel-hydraulic loco, which was manufactured in Hungary in the early '60's and is working on most of the public 760 mm lines here.

More images about this line HERE and HERE.