"Update: Marks stand for WILLIAM HUTTON & SONS ELECTRO PLATE. Last two letters are E and P.
1843-1900. In 1900 they began using crossed arrows as their mark. Sheffield, England, UK.
Your spoon is no less than 117 years old but could…"
"Thanks for that, I make it out to be William Hutton and Sons ... it has been suggested that the B is either Britain or Birmingham. Still unsure how to interpret the final letter... I did follow the link (very handy indeed!) but have yet to find this…"
"This is electroplate from Sheffield England and that's a mark Hutton often used for their electroplate. British Sheffield isn't really a "thing". I don't think that's an S; looks like a lyre or something; maybe the…"