5 Shillings 1804 - Countermarks - Help Needed

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The "UK" witnessed many, early 1800's countermarked or counterstamped (terms mostly used synonymously by us on this side of the Atlantic) coins, marked by merchants. There were many occupations, like cutlers, liquor dealers, metal smiths, etc. Often, there's a name, occupation and/or street and town all stamped on the coin. These have some value to them. Random initials have little or no value, except to perhaps an owner whose initials they are.