China Local Stamp "Wuhu 1893 Cover"? Help!!

This envelope is bought from the stamp auction company UK about 20 years ago,the kind of bids that you will to sent a price on bids list for hunting an item as mail order rule is .
I'm not sure that company is still work for business and service-mail his auctions in the UK?
This Chinese local envelopes buy from UK is a little paradoxical, but it is true things.By now,I can not provide any evidence for ever purchased ,such as bill same proof,so sorry!

China Wuhu local region of issued stamps and the actual delivery of as this envelope(see pictures), true regions such as the post office in the service and from the messenger? I do not how to proof if it's true?

Pictures as below:
Front of the cover


Stamps on cover-1


Stamps on cover-2


Back of the cover

Thanks for your interesting.
How to remove topic to "birds on stamps"?I do know how to do it,I'm a neo member today.

Seem no missing stamp(s),just condition is water damage.
THX Ur help.

You Nice classical collections!: )

Yes,my interesting collection is "Family Anatidae"like as goose,swan,duck all are so beautiful in my eyes.
Therefore I got many material of classical stamps and covers in my collection past twenty years.
For example as W.A.Australia swan;Chinese empirial issued (high value stamp are geese),and so on...