The answer will depend on 15.6 what! It will not weigh 15.6 tonnes on the surface of the earth, not will it weigh 15.6 nanograms!
The U.S. has never made a gold half dollar coin. Look at the coin again and post new question.
the lead clearly weighs more...
The Feathers, Iron, Wood, and Leaves would all weigh the same. Water could vary depending on the temperature, but the 16 liquid ounces will be very close to the same. The paint will probably weigh the most, the 16 fluid ounces will have a higher density and typically has metals in it. The Gold would weigh less, as it is measured in Troy weight rather than Avoirdupois weight.
If the coin is dated between 1840-1907 there is .12094oz pure gold in the coin.
One user said:While on the face of it a pound of feathers would seem to weigh the same as a pound of gold, this overlooks the fact that gold is universally weighed using a different definition of 'pound' than that used for most other materials.Precious metals such as gold are measured in troy weight. A troy pound is 12 troy ounces, and each troy ounce is 480 grains, making a total of 5760 grains to the pound of gold.Most materials use pounds and ounces from the avoirdupois system, and such a standard pound is made up of 16 ounces, where each ounce is 437.5 grains, making a total of 7000 grains to the pound of feathers.All this means that a "pound" of feathers (or bricks, or lead) is heavier than a "pound" of gold.
A 1889 gold 5 pound coin is worth 5 pounds of gold, while a 1889 2 pound gold coin is only worth 2 pounds of gold.
It depends on which coin it is. Just in the US, there were pennies, silver dollars, and even gold coins made in 1887.
A Gold $5 coin from 1887 is called a "quarter eagle" ... According to the retail guide, the average value of this coin is around $300, depending, of course, on the current market value for spot gold.
Since the Great Recoinage of Act of 1816, all British Sovereign coinage has been minted to a standard which has been maintained to this day. A British 22 carat gold Quintuple Sovereign (gold Five Pound coin) weighs 40 grams and is 37 mm in diameter. The weight may be down a little if the coin is worn. The 1887 coins are known to have been forged, so exercise caution if considering a purchase.
In British Decimal currency, the One Pound coin was first issued for general circulation in 1983. The British Two Pound coin was first issued in 1985 as a collectible gold coin. It was first issued as a nickel-brass Commemorative in 1986, and as general circulation coin in 1997.
The first gold Fifty Pound coin issued by the Royal Mint was in 1987.
As I type this the value of 1 pound of gold is $18,040.00
The 1887s US coin in VF-20 list at$275.
A British 1887 22 carat gold Five Pound coin (Victoria)(Jubilee bust)(minted in London - no mintmark), uncirculated and in absolute mint condition could fetch up to £1,750 GBP. If it has been circulated but still in good condition, it might fetch anything from £750 to £1,150 GBP. A British 1887 22 carat gold Five Pound coin (Victoria)(Jubilee bust)(minted in London - no mintmark)(Proof FDC), uncirculated and in absolute mint condition could fetch up to £3,500 GBP. A British 1887 22 carat gold Five Pound coin (Victoria)(Jubilee bust)(minted in London - no mintmark)(Proof FDC)(no BP in exergue), uncirculated and in absolute mint condition could fetch up to £3,950 GBP. A British 1887 22 carat gold Five Pound coin (Victoria)(Jubilee bust)(minted in Sydney - mintmark = S) is considered extremely rare. CAUTION - There have been recent forgeries of these coins. The values quoted are the best possible for the best specimens in their grades, but may be significantly lower due to varying demand for the coin and the prevailing economic climate. A reputable coin dealer will be able to give a more accurate valuation based on inspection of the coin.
If the coin is made from gold, it will say so on the packaging it was sold in.
The British decimal One Pound (nickel brass) coin was first issued in 1983. A gold One Pound coin was issued from about 1489 until 1604.
24.18% of an ounce of gold