THANK YOU!!
Found with Google Fu;
"Wheel weights stamped FE
While checking out some wheel weights prior to smelting, I ran across two painted weights stamped "FE". Couldn't scratch them with my linemans pliers but they were attracted to my magnet. So in addition to looking for wheel weights stamped Zn (zinc) watch out for the ones stamped "FE". The one redeeming thing about the FE wheel weights is they have a much higher melting point than either the lead or zinc ones so they should be easily identifiable. Be suspicious of any painted wheel weight."
Makes sence...
CW