How come? If I remember correctly the kind of seat stays cup was used in 1978-1979 and this would match the flat fork crown also used on 70s De Rosa
De Rosa still used the flat fork crown until the late 80s as seen on the 1988 35th anniversary model:
@Sig_Arlecchino started
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How come? If I remember correctly the kind of seat stays cup was used in 1978-1979 and this would match the flat fork crown also used on 70s De Rosa