https://www.ebay.co.uk/itm/Pipe-Organ-Rare-Parlour-Organ-1847/123615672199
Lovely looking instrument.
(https://i.ebayimg.com/images/g/V-AAAOSwW4tcTeVB/s-l1600.jpg)
It is indeed a nice looking instrument and the casework and much of the insides could well be by Renn (sic), but the specification, stop labels and compass must be much later. For example, it has Lieblich Flute and Lieblich Bourdon, and Lieblichs didn't appear until Schulze's Great Exhibition organ of 1851. An interesting opportunity for research.