The British pound has lost 95% its value since 1966. Why a pound today is worth only 1% of a pound in 1936 Updated: November 10, 2021. How much is a Guinea worth? - BullionByPost It is not used any more. The sovereign contains 0.2354 oz of gold, and this gives a bullion value of 0.2354 × 1791 = about $420 or £318. £1 in 1860 → 2022 | UK Inflation Calculator A Guinea is a 22-carat gold coin that weighs around 8.3g. As of today, 1g of 22-carat gold in USD is $44.84. So, for Guinea in American currency, today will be $371.12. I take it the question is about the vale of a Guinea while the UK was on a good standard from about 1700 to 1931 . I1 Guinea was equal to 21 shillings or 1.05 British Pounds. how much is 50 guineas worth today. how much is 25 guineas worth today - thfs.co.nz Our inflation calculator works for amounts … How much was 25 guineas 1966? how much is 25 guineas in 1966 worth today