I found this bike in very rough shape some 6 years ago and am finally getting around to reassembling it. It has a cambio corsa derailleur system, however it is not the one that one usually finds, but rather the second generation one that was made from about 1937 until 1942 (as best as I can tell). So this means that the three levers (both Q/R levers and shift lever) all have cross-hatching marks and a wheel on one side of teh lever and writing on two lines on the other (look at the pictures to better understand), as well as the bell cover of the Q/R cam having a rounded shape. When I found the bike it was fitted with a three speed freewheel which is what I fitted it out with once again. The rims are period correct but from the wrong manufacturer and country (they are Sieber rims from Switzerland). Once the correct tires arrive (some 35 mm wide road tubulars), they will look great. The handlebars are likely period correct, but the steel Cinelli stem is too modern by about one decade. The hubs are original Bianchi-branded hubs (the front has an unusual 95 mm wide locknut ot locknut width). The cranks too are original Bianchi-branded, with the nice Bianchi chainring. The BB fixed cup is branded Bianchi and date coded 1941. The BB spindle is branded Bianchi and strangely enough is date-coded 1939. The adjustable cup is not marked. I still need to fit the correct tires (they should arrive from Italy shortly) and the integrated seat tube oiler (waiting to return from the chromer).