France

SNCF had three alligators, all built for the AC network (25 kV/50 Hz)  that was set up after WWII: classes BB 12000 and BB 13000 were four-axle light freight/shunter locos with slightly different looks, class CC 14000 was a six-axle heavy shunter. Below, from RailFanEurope, a photo one member of each class on Jean-Paul Lescat's excellent scanned dias.

Czechoslovakia & descendants

Shunting locomotives 110 (3 kV DC version), 113 (1.5 kV DC version) and 210 (AC version) have the same form on the outside. (But all of them display a bedazzling array of paint schemes.) Below a 110 in Slovakia.

Hungary

Hungary pioneered industrial frequency traction on a large scale, but later locomotive development got struck. The last domestic attempt in the original line before buying the license of a Western design (and one already using a foreign solution, the Ward-Leonard system) was a light universal locomotive, built in two versions (with a slight difference under the hood): classes V41 (built 1958-1962) and V42 (from 1960-1964). Unlike my other European alligators, they were strongly assymetric. Below a restored V41, in original painting scheme except the red star.

From the seventies, Hungarian electric locomotive construction at Ganz-MÁVAG woke from the dead (though only until the early nineties). From 1983, they built 60 locos of the new shunter class V46. They are my favourites (maybe because they were new when I was a child). Here is one, freshly renovated, in Budapest Ferencváros:

_{*Lunatic*, n.
One whose delusions are out of fashion.}