Undoubtedly Abus copied or visa versa because I have about 6 in my collection, they made a Brass version which I did have once but went walkies somewhere never to be seen again, mine are all Chrome KA.
These don’t offer any sort of security (3pins) and can be picked without difficulty, heck, I’ve opened mine by just putting pressure on the tailpiece and inserting the pick and it opened 😃:.
The first time I saw one was when I was about 11 in school (brass Version), I never tried to pick it because it was in a public area and had no idea how long it would take and so just left it, Wish I had now, Free phone calls 🙂