Is this a Bianchi?
Interesting ebay XC frame. Seems a Bianchi, but not sure. Local to Sacramento if anyone is interested. My guess is a 1990 Equinox? If I was local I would buy it, but I am not, darn it. I am thinking it would be very negotiable. Only $60 ask.
https://www.ebay.com/itm/27538570126...Bk9SR7iXudfhYA
Aftermarket riveted boss for a pump I guess?
Might be a candidate for gugificazione?

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1987 Crest C'dale, 1987 Basso Gap, 1992 Rossin EL, 1990 Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Isoard, 1987 Nishiki Tri-A, 1981 Faggin, 1996 C'dale M500, 1984 Mercian Pro, 1982 AD SuperLeicht, 1985 Massi ?, 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh Internat'l, 1998 Corratec U+D, 1991 Peugeot Slimestone, 1987 Bianchi Volpe, 1995 Trek 750