The BladeForums.com 2024 Traditional Knife is available! Price is $250 ea (shipped within CONUS).
Order here: https://www.bladeforums.com/help/2024-traditional/
In what manufactures line?
The equal end jack is no longer made.
http://www.allaboutpocketknives.com/wr_case/patterns_by_number/46_60.php#055
Somebody posted a picture of one and I recognized the pattern as being the same as that of my first pocket knife I adopted from my dads tool kit when I was ~8. Neeman and 6.0stroker were kind enough to ID it for me.
A few that come to mind... horseman's, sleeveboard lobster, corn, fixed-blade pen, 4-blade senator (?), fixed blade champagne, anything with a button hook. Lots of old patterns were recently revived e.g., harness jack, ring-turn, doctors, cotton sampler, leg for example.