Hello again ppl. I've seen a strange thing up on the Estrada de Ferro Sorocabana's Railway Workshops, on Sorocaba, São Paulo, Brazil. It has a siren that has some horns, but.... it's sound doesnt seem right. There's a video of it right here. https://www.youtube.com/watch?v=oMHo8uHL2jg
There's also some pics I took of it with the Snip & Sketch tool from Windows: