I bought some LEGO pieces from eBay, and I'm not sure if they are genuine LEGO.
I compared with my LEGO, and every piece of my LEGO has the logo ©LEGO on it. However, only some of the ones I brought have this logo, and some have not.
You can see that © symbol on right gun and on left side is gun from my own LEGO collection. If you turn them, the gun (mine) has some numbers (I think manufacturing number) and write LEGO and on the other one (new one) there is nothing. Is this just old piece of LEGO, or a fake knockoff?
Additionally, some of the battledroid torsos have the © LEGO mark written on them, as well some numbers, and some of them have just © and nothing else.
It is the same with the battledroid heads. On the top of my genuine parts there is ©LEGO, with numbers on the other side, yet with these questionable new ones there is nothing.