Got one 2 years ago with cable guides too and CRANE rear mech. Actual 1st gen.
Was much cheaper though.
https://www.lfgss.com/conversations/305208/
Yours feel more like either a late, before 1977, version without the crane rear mech, or a mix.
https://cycling-passion.com/dura-ace-history/
Yeah it is later. It’s a DA EX rear mech which is an upgrade.
@indieross started
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Got one 2 years ago with cable guides too and CRANE rear mech. Actual 1st gen.
Was much cheaper though.
https://www.lfgss.com/conversations/305208/
Yours feel more like either a late, before 1977, version without the crane rear mech, or a mix.
https://cycling-passion.com/dura-ace-history/