Here is the description of the part from the Quaces site:
Emergency brake, seized, massive
[1769] 89.00€
High-quality grasp for the emergency brake. Very substantial execution. The attachment is made by a set-screw. The grasp is in front tapered like that originals also. You recognize a “simply-copy” by a straight front, which makes it more difficult to solve the emergency brake thereby.
Does anyone have a clue what this is supposed to mean? Thanks.