I would like to confirm whether or not this is a Sevres urn, and if so what value it might have.

The urn is 40cm (15.75 inch) high. The painting is signed ‘G Poitevin’ – I have been unable to find anything about him.

The urn is in very good condition apart from a small chip on the edge of the lid.
The base is brass and is stamped ‘Made in France’

I have had it for over 20 years but do not know its previous history.

I am posting:
– a full view of the urn
– the mark inside the cover
– the artists’ signature

Any advice would be appreciated. Thanks.