There is a nice De Rosa for sale on ebay. The auction ends in 4 hours, so if you are interested, check it out quickly. I would guess it to be a late 80's bike, but I believe a KoF bike.
The same seller is also selling another seemingly NOS De Rosa frame from the mid-80's as well some other parts.
Check them out.
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Steven Maasland
Moorestown, NJ, USA