Curious why you would want to get old when you can buy new?
https://www.esslinger.com/watch-ban...lder-nickel-plated-spring-bars-package-of-10/
I'd be afraid of breakage.
By the way, they are called "single shoulder".
Firstly because they should match my early vintage watches
secondly because they are different in dimensions:
These would be the best match for my watches.
Many of the 30ies and 40ies watches which have open lug holes, many references with cal 23.4 and 30 (T1, T2, etc)
Here's the part I can't understand. It's not like other bars won't fit those holes....
These ones look nicer from the outside of the lug hole.
Ah, so you want a bar with a longer tip that may or may not fit flush with the outside of the lug?