WelshAntiques has dated this Victorian Mahogany Corner Cupboard to the 1800s.
The lower section has a pair of gothic-arched flame-mahogany doors and is raised on bracket feet with a shaped apron between.

This is a superior example of the style favoured in the south Wales towns of Llanelli and Swansea, circa 1840.
43½ ins (110.5 cms) wide across centre
19 ins (48 cms) deep externally
83 ins (211 cms) high

Corner cupboards are notoriously difficult to measure, so if you need to fit an exact space, get back with your measurements and I'll double check.
The width of 43.5 inches is taken right across the front and includes the small side returns which angle backwards.
The depth of 19 inches is the depth from the back corner to the front (with the cornice 19.5 inches)
These are the other measurements which may help:
Width of the front without the side returns: 38 inches (with the beading 38.5 inches)
Width of side returns: 3.25 inches
Width of back from rear corner to back of the side return: 26 inches (with the cornice, 28 inches)
WelshAntiques has dated this Victorian Mahogany Corner Cupboard to the 1800s.
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