hello friends , in the 50's 60's , blz company made a copy of the gg1 , the body is short as the real and details are not so good ,no window ,lamp on the front like speleologist , the engine need 25/30 v (ac/dc) on 2 amperes , drives good (skating at start ,probably big diameter of wheels ) (and no rubber ) but no troubleshooting since 60 years
blz made loco's an coaches , visit the product, have a good day !