Looks as if its a step-thru frame road-style bike with flat/tourist bars, that pre-dates the introduction of 'hybrid' bikes, which happened in the late '80's. Of course, the frame is steel. What kind of steel? Dunno. Steel does not equal heavy. Chrome fork is cool. That does look like a fairly small frame - step-thru frames have traditionally been marketed to women in the New World. Which is not to say that they are Ladies Bikes.
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Bacchetta Giro A20, RANS V-Rex, RANS Screamer