India-British, 1 Rupee 1840, Continuous Legend

I have recently purchased a 1 rupee 1840 of British India with continuous legend (type Y457). It has a dot after the date.

The size is 31.04 mm and its weight is 11,6 g.
The left of the wreath contains 19 berries (and also 1 stam for a berry, but without berry), the right of the wreath contains 15 berries. In total 34 berries are present. no signs of any letters on the ribbon tie.

Can anyone help me in identifying the correct mint and variety?

Thanks a lot (pics will be posted as soon as possible also)