The subject bicycle would appear to be a 1972 Bianchi Rekord 71, manufactured in Italy. The tubeset is a lightweight hi-tensile steel. Basically, it was the entry level, racing model. To add to juvela's component notes, the calipers are Universal Model 51, the rear wheel is a relatively modern MAVIC replacement for the OEM tubulars and the seat post/saddle pairing is another relatively modern addition.