On the trail of invading Metal Men from Jupiter, or at least a planet thought to be Jupiter (we last saw that world in Starman's hyperspace voyage yesterday) by a concerned scientist, Earth-Two's Hawkman is the first to encounter his prey, Silver!
Each of these metal men consume various metals and adopt the attributes of said metal. Using pennys to fuse their atomic structure, this regimen of robots was knocked out.
And over time, when each Tin was destroyed a replica was constructed in his place. Feeling the need for companionship, he eventually constructed a "girlfriend" known only as Nameless who had a tragic end despite their mutual feelings for one another.