Broken clip
If your Robur or Royal has a contoured motor cover rather than a flat plate
they use the original Lucifer part numbers and are only compatible with Lucifer-pattern valve guides like this one
As an electrical control unit
Fits: Parker-coil three-way solenoid valves across many machine brands
Compak Grinder Hopper Lid portofino-parts/brasilia-portofino-gradisca-century-boiler Broken clipCompak Grinder Hopper Lid A replacement bean hopper lid sized for most Compak grinder hoppers, with an outside diameter of 187 mm. SPECIFICATIONS Outside diameter: 187 mm Compak part #: 1252366 COMPATIBILITY Fits: Compak A8, A8 Automatic, K5, K5 Old, K6, K6 Barista Professional, K6 Old, K6 Silenzio, K6 Silenzio Telescopic, K6 Telescopic, K8, K8 Old, K8 Silenzio, K8 Telescopic, K10, K10 Conic, K10 Conic WBC and K10 Conic Telescopic INSTALLATION A