Midlife
Retro Wizard
If you are desperate you could use a band on downtube cable stop, most often found in pairs for a rear mech ....... but it is a bit of a bodge.
Single
http://velobase.com/ViewComponent.aspx? ... &AbsPos=55
Double
http://velobase.com/ViewComponent.aspx? ... &AbsPos=56
Shaun
Single
http://velobase.com/ViewComponent.aspx? ... &AbsPos=55
Double
http://velobase.com/ViewComponent.aspx? ... &AbsPos=56
Shaun