From what I can see somethings have been changed. Rims certainly not original, Campagnolo script QR much later, as is Nouvo Record rear. Universal brakes supossedly 1961 introduction. The hub cones may give good date. Crank looks like old style, which is late 50s, early 60s. If it was a bike that was used, parts may have been up graded over the years. Here's mine, early-mid 60s I'd guess: