Rather suspect if it was a Grimeca, there'd be evidence of some form of linkage on this side, Firko
Correct my friend 
On second glimpse look it doesn't look Italian.....any more ideas?
it's Italian allright,i had a smaller version,weighed a ton,big caste in steel liner,see the inner middle rivets,magnesium brake plate,but shit no fade,look also at the spoke flanges,they're riveted on,expansion "cracks" around the drum centre finning,can't bloody remember what it was,wasn't Fontana,coulda been early Grimeca,or Ceriani,but i remember who i lent it to 20yrs ago,(i will catch up
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