I'd guess the track bike as more from the 30's/40's than the 20's also; the lug pattern, seatstay tops, fork crown, and angles too steep for a 1920's bike. Cool seat-nose support, too. DF
> The yellow Doniselli also caught my eye...
>
> http://ebay.com/
>
> Magistroni headset - prewar until 1970s
>
> Balilla fully-covered brake levers - late 1950s or later
>
> Sport front derailleur - 1953 until 1958 (approx)
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> GS rear derailleur - 1953 until early 1960s (approx)
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> Magistoni crankset with cutouts in the spider arms - 1960 or earlier.
>
> Perhaps Campagnolo 1010 dropouts???
>
> I guess the bike as mid to late 1950s... maybe early 60s at latest?
>
> Aldo Ross