Great topic and discussion and another area where n+1 gets costly as I have found that most every vintage bike I buy and want to ride eventually gets new bars, saddle, stem and sometimes seatpost. I just did a search on ebay to source a wider French bar, not happenin' outside the 40cm Philippe Franco Italia's that came on the bike. I also now have a box of vintage narrow bars. Nitto Classic bars #115 come in 45cm at the drops and measure 42 at the hoods and are on three of my vintage bikes, probably soon to be a fourth.