Let me comment on this:
- there are two versions, the early short one and the later long one

- yours seems to be the early short version
- there is a spring on the lock. Pressing down this spring allows you to extract the tumbler

- the early version is still easy to find. One without a key would be about 100€, with two keys 170€
- the long ones often have an issue with the rocker. Either it's broken or worn so that the steering wheel gets locked with the key in 0-position but still inserted.

That's why good long tumblers are harder to find and expensive
- you may obtain a short tumbler from me or
- you may send your key and my locksmith would arrange a matching set. Recoding a lock to your key would be about 50€
- shipping to the US by DHL tracked/insured would be 27€
- shipments declared as a present with a value not more than 100€ would not get imposed by tariffs
Thomas