Sovereigns are made from 22 carat (91.67%) gold and have been since the "Great Recoinage" of 1817.
There was a very large gap in the minting of Sovereigns until 1817, but they have always been minted from gold of varying quality.
Yes, 1887 was Queen Victorias Golden Jubilee year. Five Pound (quintuple Sovereign) gold Two Pound (double Sovereign) gold Sovereign gold Half-Sovereign gold Crown (Five Shillings) sterling silver Double-Florin (Four Shillings) sterling silver Halfcrown (Two Shillings and Sixpence) sterling silver Florin (Two Shillings) sterling silver Shilling sterling silver Sixpence sterling silver Threepence sterling silver There were no Proof bronze coins minted and no Groat (Fourpence). There were also two Proof FDC sets issued - 11 coins Five Pounds to Threepence 7 coins Crown to Threepence
Still worth 50 cents. Unless its pure silver.
Please post a new question and include the denomination and condition of the coin.
The only British 22 carat gold coins issued in 1899 were the Sovereign and the Half-Sovereign. The Florin was a silver coin from its introduction into the currency in 1848.
British coins issued during the reign of Queen Victoria (1837 to 1901) included -Five Pound (gold)Two Pound (or Double Sovereign)(gold)Sovereign (One Pound)(gold)Half-Sovereign (Ten Shillings)(gold)Crown (Five Shillings)(silver)Double Florin (Four Shillings)(silver)Halfcrown (Two Shillings and Sixpence)(silver)Florin (Two Shillings)(silver)Shilling(silver)Sixpence(silver)Groat (Fourpence)(silver)Threepence(silver)Twopence (sometimes Half-Groat)(silver)Three-Halfpence (silver)Penny (copper or bronze)Halfpenny (copper or bronze)Farthing (copper or bronze)Half-Farthing (copper or bronze)Third-Farthing (copper or bronze)Quarter-Farthing (copper or bronze)
Since 1817, Sovereigns have been made from 22 carat gold. I cannot imagine why anybody would silver plate a gold coin, so you may have a replica in silver. Value unknown.
British coins struck and dated 1877 include the - Sovereign (22 carat gold) Half-Sovereign (22 carat gold) Halfcrown (sterling silver) Florin (sterling silver)(dated mdccclxxvii in Roman numerals in lieu of 1877) Shilling (sterling silver) Sixpence (sterling silver) Threepence (sterling silver) Penny (bronze) Halfpenny (bronze) Farthing (bronze)(minted as a proof coin only, not for circulation) Last but not least, the Maundy set of sterling silver coins including 4d, 3d, 2d and 1d (not for circulation).
British coins minted from 1885 to 1930 would include - Five Pound (gold) Two Pound (gold) Sovereign (One Pound)(gold) Half-Sovereign (Ten Shillings)(gold) Crown (Five Shillings)(silver) Double-Florin (Four Shillings)(silver) Halfcrown (Two Shillings and sixpence)(silver) Florin (Two Shillings)(silver) Shilling (silver) Sixpence (silver) Groat (Fourpence)(silver) Threepence (silver) Maundy Sets (4d, 3d, 2d and 1d)(silver) Penny (bronze) Halfpenny (bronze) Farthing (quarter Penny)(bronze) There were other coins minted by the Royal Mint during this period, but they were primarily for the use of some of the Colonies and were not circulated in Britain.
In the absence of any detailed description, it very possibly a silver British Crown (Five Shillings). Many British Crowns had the Saint George slaying the dragon design on the reverse.
North Korea thinks that it is Sovereign. But they are not.
Actually you are born sovereign.
All British coins from 1937 to 1952 inclusive feature George VI on the obverse. These include the Five Pound (Quintuple Sovereign), Two Pound (Double Sovereign), Sovereign, Half-Sovereign, Crown, Halfcrown, Florin, Shilling, Sixpence, Threepence (round silver), Threepence (dodecagonal nickel brass), Penny, Halfpenny and Farthing. There are also a large number of coins from most of the various Commonwealth countries that feature King George VI on the obverse.