What is the value of a 1973 isle of man sovereign?

Answer 1

The only Isle of Man Crown produced in proof in 1977 was KM#42a in honor of the Queen's Jubilee Appeal. It is 38.5mm in diameter, weighs 28.28 grams, is 92.5% silver, and thus contains 0.841 troy ounces of silver (valued at, with silver at US$42.00 as of April 14, 2011, US$35.32). 30,000 were produced in proof and are valued, according to the Standard Catalog of World Coins, at US$30.00. Another 70,000 were produced in Uncirculated condition, as well as an uncertain number in Uncirculated condition in Copper-Nickel.

In 1978, Crowns in both Silver and Copper-Nickel were produced in proof for the 25th anniversary of the Queen's coronation. The silver coin (mintage 30,000) is valued at US$25.00, while the copper-nickel coin is valued at US$17.50.

In 1979, The Isle of Man produced six different crown designs, each in four different metals (copper-nickel, silver, gold and platinum), with the latter three metals in each case available in proof condition. The silver proofs are typically valued at US$25.00; the gold (1.2677 troy ounces) at US$1,250; and the platinum (1.5882 troy ounces) at US$3,000. Note, however, that the silver and gold values are below the current "melt" value of the coins (as of April 14, 2011), and so are probably understated.

Answer 2

An Isle of Man 1974 cupro-nickel Crown (Elizabeth II)(Churchill Centenary), uncirculated and in absolute mint condition could fetch up to £5 GBP.

An Isle of Man 1974 sterling silver Crown (Elizabeth II)(Churchill Centenary), uncirculated and in absolute mint condition could fetch up to £7 GBP.

An Isle of Man 1974 sterling silver Crown (Elizabeth II)(Churchill Centenary)(Proof), uncirculated and in absolute mint condition could fetch up to £9 GBP.

A reputable coin dealer will be able to give a more accurate valuation.