A Brookes has dated this Union Jack Drop Arm Sofa to the 1890s.

A wonderfully proportioned late Victorian drop end sofa, this delightful example from the period has to each corner tapered supports terminating on there original brass castors, the upholstery within I take to be traditionally coil sprung and overstuffed, this remains very supportive throughout and comfortable to sit at, the sofa has the expected good weight reflecting the period framing, the mechanism to the drop end operates freely and can optionally be adjusted to a number of positions
A Brookes has dated this Union Jack Drop Arm Sofa to the 1890s.
Alexander brookes antiques
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