[Indy]

Easy
Just flip that stem over
Should be perfect

realistically and all kidding aside
Modern stems will work if needed
period correct build may prove difficult to find the original stem

 

[Indy]

Jitsie Forged Stem

- Excellent value forged stems from Jitsie. - Available in 35° angle and a variety of lengths to suit any rider and bike. - 3D forged from 6061 alloy for an optimal strength/weight ratio. -...

www.webcyclery.com

Perhaps this in 180mm
Bars could be swapped with something else more modern