The Sistema series is first family within Parts of Four. As a mode of creation it expresses the core principle of P/4 which is modularity. The "body" and "insert" are separate parts joined together with pins. This leaves endless possibilities for iteration of material and form combinations.
Brass substrate is electroplated with 18k gold and then dipped into acid to create the subtly destroyed surface. The concentration of the plating solution, air temperature and time in the acid bath all play integral roles in the final result and exist in a delicate balance. No two items are the same and these nuances / variations should be seen as a characteristic of the product.