Do you know when that was printed?
In the 1780s 10 guineas was a LOT of money. Over $50. More than half a year’s per capita income.
Recruiting Poster, circa 1800, Fourth Regiment of Foot.
Ten Guineas Bounty and a crown to drink his Majesty’s Health. Wanted to complete a company in His Majesty’s Fourth or King’s Own Regiment of Infantry
http://www.kingsownmuseum.plus.com/recruitingposters01.htm