I've never seen a bike built in 1949, but I still have my '64 Legnano Roma that I got new as a junior racer. Coming home from Eroica, I found a '61 Legnano Gran Premio, so I'm getting closer to '49. Maybe someday, though I'm not sure how fun it would be to ride a 70 year old bike.
'61 Gran Premio on the left, '64 Roma Olympiade on the right.