Gear shifter cable connection problem on vintage BSA

Ok, might be swearing in the church but since this is the only bicycle forum I'm a member of and considering the vast knowledge of the members here, I take the chance to ask anyway ;)

I have a new (old) bike, a BSA from the 30-40s, which is about finished for riding now.

However, I have a problem with the gears which for this bike I'd like to keep. Basically, the gear cable attaches in a non-standard way inside the gear shifter, where it looks as if it should hook up on a small pin.

I assume I'm missing a part of the shifter or if it is a general detail which you attach to the end of the gear cable (not the usual welded end cap) with a small screw, which in the other end is ring shaped.

The shifter looks like this:

Down at the gear hub it's an ordinary cable connector like this:

If anyone knows how to attach the cable to the pin inside the shifter or knows either where to buy or has for sale the detail I assume should be attached to the end of the cable that goes into the shifter that would be much appreciated.

Kind regards, Vic

Image showing the little pin where the cable should attach.

I seriously considering making a loop on the end of the cable and closing it with some kind of cable adjuster, but the cable will wear fast that way and a proper solution would be to prefer... :)

Hi Victor, I realize that you made this post 3 years ago,
but I have exactly the same problem today!
Did you find a solution?
Many Thanks
Steve

Found the answer to this problem at

http://www.hilarystone.com/index.html

Although the actual cable can't be found on the website, after a couple of emails I was offered one of these:

Although it has not arrived as yet, hopefully this should solve this mystery.

Cheers Steve