John Manton guns were at the top of the industry in quality , manufactured in London and their popularity for quality them a target for forgery. Other Countries made them by the thousands, Manton and company is a forgery and any without serial # on every piece were also forged. Check your piece with a professional, that's the only way to determine value.
100-200
How much are john strevens paintings worth
how much is it worth
priceless
alot.
About $17 million.
life.
62.5 $
Several million
50M
100 million
$10 Million