As you can see, the eBay sword appears to be a copper alloy (it is non-magnetic) and has more detail than the iron Design Toscano swords. The blade appears to be a little shorter than the Nova Scotia sword but the figure on the hilt is identical. There appear to be clear signs of grinding on the side of the figure, presumably to remove lines from the mold. The extent of grinding appears nowhere near as extensive as what is visible on the Design Toscano sword, however (mine basically looks like someone took a disc grinder to poor Hercules from his wrists to his ankles).
Without seeing this sword (or the alleged "Roman sword" from Nova Scotia) firsthand and still without any metallurgical analysis, I will cautiously say that seeing these pictures only strengthens my feeling that my hypothesis of two generations of swords (neither one from ancient Rome) is essentially correct. My guess is that this sword, the Nova Scotia sword, and the other brass/bronze swords floating around out there were produced sometime in the 1800's or maybe even more recently.
No word from Furlotte yet as to whether his sword has any magical powers.