Colombo Design Lidia KOT31R: brass door handle on rose

Lidia KOT31R is an interior door handle from the Colombo Design Antologhia collection, made of brass and supplied in a traditional round rose-mounted configuration.

The model revisits a highly recognisable form from traditional architectural hardware through balanced proportions and a restrained classical design. This allows Lidia to work naturally in period interiors while also providing a distinctive traditional detail in more contemporary settings.

Main specifications

A balanced classical design on rose

Lidia retains a clearly classical identity without the highly ornate character of some of the more decorative Antologhia models. The lever remains the main visual feature, while the round rose creates a lighter composition than a traditional long backplate.

This makes Lidia suitable for timber doors, period properties and restoration projects, but also for contemporary interiors where historically inspired architectural hardware is deliberately used as a contrasting design element.

45 mm round rose and return spring

The KOT31R version is mounted on a 45 mm round rose and incorporates a return spring. The specified spindle is 8 × 90 mm, with an indicative door thickness range of 42–55 mm.

These specifications should always be checked against the actual lock and door configuration before installation.

Traditional Italian craftsmanship

Lidia belongs to Colombo Design's Antologhia collection, a Made in Italy range inspired by historic architectural hardware. Traditional manufacturing methods are combined with a significant element of manual craftsmanship and hand finishing.

Slight porosity, texture or minor surface variations may occur as a natural consequence of these processes. Such characteristics are consistent with the handcrafted nature of the collection rather than the perfectly uniform appearance of fully standardised industrial production.

Finishes and natural ageing

The product page offers polished chrome, bronze and natural brass finishes, allowing the handle to be coordinated with timber doors, hinges, locks and other architectural metalwork.

Natural unlacquered brass, in particular, may gradually oxidise and develop its characteristic surface patina. This natural ageing process contributes to the authentic appearance traditionally associated with handcrafted architectural hardware.