Opus Antiques has dated this piece to the 19th Century.
The scales are housed in a mahogany case which measures 14cm l x 2.8cm w x 1.8cm d.

'These balance[s] are as accurate as the best of scales;
more expeditious, portable, and not so liable to be out of
order. they may be tried with sealed weights at any time fir the satisfaction of those who refuse to take money by them.Before you shut the box put the slide to the cipher and turn up the scale.

Sovereign ....... 5dwt*[. 2 1/2 gr.]
Half-Sovereign .. 2[dwt 1]3 [1/8 gr.]
The turn at the end for a Sovereign:-to the centre
for Half-a-Sovereign, and the slide at the cipher, where
it stops.In removing the slide from the cipher towards the figure 12 each degree indicates a penny.
Opus Antiques has dated this piece to the 19th Century.
Antique treen, boxes & decorative georgian items
You can view the stock and full dealer information on the Opus Antiques Profile Page