the grip and rose radially lobed, the rose with secret screws, linked by a standard gauge spindle,

This is a Georgian design, suitable for 19th Century interiors. Here nickel-plated, this pattern can work beautifully in contemporary schemes. Suitable for internal mortise locks but not intended for rim locks (for which one rose needs to be omitted). Spindle gauge is standard and should work in any English mortise or rim lock. These are reproduction door-knobs so can be ordered in quantity if required.