80s cantilever chairs set of 4

Set of 4 cantilever chairs from the 80s in black with maroon glints on the leather.
Simple and classic model reminiscent of Mart Stam and Marcel Breuer’s designs.

Condition:
Good overall condition, the only visible flaw is that there are two of the chairs that do not have the lower bars from under the seat.
But they do not affect at all the use of the chair itself in general and not very noticeable.