This is the Spanish 319 (ex-1900 serie) made from the pieces ans spare parts of a major serie previously working in the network. Those locomotives are General Motors built in their origin.
Majorly used in good trains, some of them were adapted for regional traffic.
- Picture from web comofuncionanlostrenes.blogspot.com.es by Yagolo
After a major revisión of necesities in network, RENFE had sold some of them to Argentinian railways (and some TALGO tilting stock) as seen in the picture
- Picture from www.todotren.com.ar website
You can see in Christo's pictures new cosmetic improvement in the same loco, specially in cab shape
regards
BalkanExpress