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your frame exhibits details which are too early for such a date:

non-recessed brake mount

long dropouts

only one set of water bottle mounts

eyelets on frame ends

seems quite clear frame comes from 1977-80 time frame mentioned earlier

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rather than spending your energies looking at cycles/catalogues online your inquiry would be better served by determining the thread of the bottom bracket shell

if it is BSC/ISO that would strongly suggest a Flandria parentage

if it is Italian that would tend to indicate an Italian origin although cycles with Italian thread shells have also been produced in Belgium and in Mexico


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