Joined: Feb 2012
Posts: 19,379
Likes: 5,524
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
I don't think the Op's question has a real answer. Or one which others can answer. Handle bar shape and width are like saddles or shoes a personal issue.
Sure one can make some kind of associative argument for this or that based on era "standards" but these don't mean anything to a non era body (and that is a bit of a tongue in cheek...) Andy