Originally Posted by
miamijim
True.
OP, do some leg work to determine it's approximate year and authenticity. I'm not a derosa expert by any stretch of the imagination but the 3 I've owned all had 'DeRosa' engraved into the fork crown. Maybe the older ones didn't.
I'm not an expert either, but I think that engraving is correct for the period. I don't know the time lines, and I'm not even sure there is 100% consistent usage, but I do think they used different engravings before the one you mention.