Great Britain. George III. Silver Shilling (18..) or just old copy?

Great Britain. George III.
Silver Shilling (18..)
3.69 grms only.

This listing done at best of my knowledge.
It is difficult to distinguish between a real damaged coin and damaged counterfeit coin.
Heavily impacted by oxidation/corrosion.
First two digits are clear-18 but the last digits could be 16 or 18 or 19.
For condition-please examine the photos of both sides of the coin provided.

No swaps offers, please!

A postage within Ireland is €2.25 by Standard Post.
If the total of the purchase will be higher than €35 Registered post required at €10.50 extra.
In case of multi-purchase of few items I could arrange a collection for you from D1.
Due my working schedule and shifts I limited in time for collection so only post for single purchase of this coin.