Quiet Street Antiques of Bath has dated this piece to the Regency era.
It also features numerous Customs & Excise stamps for various monarchs including Queen Victoria; George Vth and George VIth.

These very fine quality measures were used by Customs & Excise to check that market traders did not under-sell their customers by supplying short amounts. Woe betide offenders, who would be heavily fined for a first offence and perhaps deported to Australia for a subsequent one!
Quiet Street Antiques of Bath has dated this piece to the Regency era.
Fine antiques at sensible prices
You can view the stock and full dealer information on the Quiet Street Antiques of Bath Profile Page