Alongside the titanium version limited to 333 pieces, a cheaper regular variant of precious resin is also appearing; the black version is felt by collectors to be more in keeping with the classical design of 1912. The exchangeable rings are regarded as a nice but rarely used detail in everyday life. The combination of machined titanium and the classic safety design is partly criticised as ill-fitting. Further pictures and discussions can be found in relevant collectors' forums like the Fountain Pen Network.