So these are rather unusual keys by Pierre Haffner. I don’t seem to be able to find much about him or his unique key design. I can only assume it was either not very good or too expensive to produce?
I have included picture of the 2 keys I have along with some photos of Pierre and a safe.
Please let me know if you have any info on this?
(Ps searching the forum this looks to be the first post about this key which is interesting).