Them Yooropean locos are pretty darn sneaky…anyhow, your green froggly loco DOES belong to a railroad - it’s called SNCF - the French National Railway Company.
You may of may not know that the 141R loco’s were actually US-built for the purpose of revitalising the mostly-destroyed French railways after five years of being bombed…
So you can tell visitors that it’s a ‘trial loco’…
tac
www.ovgrs.org