I am trying to find information on the silver and crystal epergne (?) shown below. I think I know the following (please correct me if I am wrong);
*Sterling .925
*Made in London in 1804
What I can't figure out/find is the name of the smith (maker's mark 'TH'). Please let me know if you have any information on this or any of the other marks that might help.


Thanks in advance!
.