A British 1757 Sixpence, circulated but still in good condition, might fetch anything from £10 to £90 GBP.
A reputable coin dealer will be able to give a more accurate valuation.
NOTE - The reverse of these coins is upside down to the obverse. This is normal.
The Sixpence was not introduced into the currency until about 1550.
Probably nothing. Modified coins have no collector value.
A Sixpence was a small predecimal British coin. Half a Sixpence was a Threepence, an even smaller predecimal British coin.
All British 1935 Sixpences were minted at the Royal Mint London. There are no "D" Sixpences.
Yes. If you are hoping to increase the collector value of the coin, any cleaning process you might use will only damage the finish of the coin and remove precious metal.
A British 1700 Sixpence, circulated but still in good condition, might fetch anything up to £1,350 GBP. A reputable coin dealer will be able to give a more accurate valuation.
The British Sixpence was known as a "Tanner". The Australian Sixpence was known as a "Zack".
A Halfcrown is the eqivalent of Two Shillings and Sixpence. A Crown was Five Shillings.
The Royal Mint did not produce any Sixpences from 1752 to 1756 inclusive.
Good luck if you have one, but the last British Sixpence was minted in 1967.
The value of a 1758 British coin can vary significantly depending on the specific type of coin, its condition, rarity, and current market demand. For example, a 1758 British halfpenny might be worth a few dollars, while more rare coins from the same year could fetch hundreds or even thousands. To determine an accurate value, it's best to consult a numismatic expert or check recent auction results for similar coins.
GRI (not "GRJ") on the reverse of the 1937 to 1946 British Sixpence is an abbreviation for George Rex Imperator.