This bike is on my local Craigslist for $100. Attached is the 1 photo from the ad. I found one mention of a Kastle frame here on BF and that it is likely made of Tange Prestige. The seller simply listed it as "italian racing bike"; I found that Kastle was acquired by Atala at some point.
I haven't done much off-road riding in a long time because of having to go so far to get outta town. For $100, I may grab this.