Does anyone know identify these coins. / Alguém sabe identificar estes moedas. / ¿Alguien sabe identificar estas monedas.

2nd one is Eritrea maybe. Last one Danish Copenhagen token for a Summer Festival, I think?

Hello Joao,

the second one is not a coin, nor a token...Apparently is a knob regulator for old petrol lamps..On the back the middle should have been attached to the lamp...Even the name is written wrong, should be "Vittorio"  without "c"

See here:

http://www.forum-numismatica.com/viewtopic.php?f=60&t=24959

and:

http://www.numismatikforum.de/viewtopic.php?f=63&t=32382

and more images of similar knobs:

http://lumiara.perso.neuf.fr/lumiara/de/manude.htm

First one's a Chien-lung cash coin from China - Empire.

The third one is a Chinese charm token.

Here's the first one (got one myself)
https://en.numista.com/catalogue/pieces17924.html