Unencrypted BSA B 33s are about as common as an M / F politician who does not lie when he / she moves the lips. AutoMotorKlassiek found no fewer than two. So keep an eye on the kiosk or take out a subscription. That gives many more benefits!
But then: with 1 of the 2 B33s there is - no doubt self-made - special tools. And what are those two things left for?
Suggestions are welcome!