Opus Antiques has dated this piece to the 19th Century.
The scales are housed in a mahogany case which measures 5" long x 1" wide and 3/4" deep.

'These balance[s] are as accurate as the best of scales;
more expeditious, portable, and not so liable to be out of
order. The Sovereign and Half-Sovereign must draw the
scale to the Lotto and remain there, otherwise they are

short of weight. Before you shut the box turn up the scale.
Current Wts of Gold Coin
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. Every stop nearer the centre is a farthing**
above the currency; the divisions the other way are a
penny each for light gold.
STEPHEN HOUGHTON & SON;
13[8], Scotland Road,
LIVERPOOL'.
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