Thank you all for your input, Gentlemen.
David, that link is very interesting; i wouldn't mind to be in the place of that cab driver ... suddenly getting some pocket money
Kronckew, right on the target. I have just located a similar example at the Portuguese Archeology Museum ( picture attached ), with the remarks that it still kept is casting cone ( sprue ), as also some burr on the sides, denoting that this example was never used. So as David reminds, some of these things were just destined to grave goods. This ( only ) example in the museum was found in Portugal; i will then infer that my couple pieces are also Portuguese ... they were bought by the local seller at an auction in Oporto.
It seems as this pattern with loops dates from 1000 BC, as i have read here:
Coincidently, the other day i kept staring at some Luristani daggers in a couple sites, and i wouldn't dare to pick on one of them, fearing they were fakes. With these axes, circumstances were quite distinct; i bought them at sight, from a guy that bought them only because they were part of a lot of padlocks he was interested in. He hadn't the slightest idea what these two "brass" things were. As he narrated the auction event, which took over a couple months to take place, he told me how much he paid for the lot; so i offered a price for the axes that would cover what he spent for the whole lot ... he couldn't resist. And i came home pleased with the two pieces for 250 Euros. So if they are a fake, it's not the end of the world. But i would say that the existance of the sprue gives it an indication of authenticity.