8312 528-92 good overall condition concidering the age

Antique 18th Century Bilston Battersea English Enamel Patch Box
i am not 100% sure it is made by Bilston or Battersea but i have done a lot 
of research and it always comes back to Bilston or Battersea.
There is a very fine hairline crack on the lid and a small chip at the base on the enamel the glass for the mirror is intact but the coating to make it a mirror has degraded

Free Delivery with Royal Mail Tracked 48
width,  3cm,(1.18") 
height, 2.5cm,(0.98") 
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PLEASE KNOW WHAT YOU ARE BUYING READ DESCRIPTION AND LOOK AT PHOTO?S
Do you think my price is to high? then why not make a reasonable offer and i will consider it
i will not take offers on an auction lot.
I will combine postage whenever available
may show light signs of age related wear especially on the base
If you have a problem with your purchase, please let me know 
and i will do my best to help resolve any issue or i will give a full refund on its return
I normally despatch the next working day after payment
postage to UK only, Overseas buyers need to message me before buying
I NOW RECYCLE AND SHRED AS MUCH CARDBOARD AND PAPER AS 
I CAN TO USE AS PACKING TO REPLACE PLASTIC PACKING MATERIAL
sizes are from the highest and widest point including base, to the nearest 5mm
I usually despatch the next day by royal mail tracked 48, but this is subject to change 
depending on size, weight and value of the item